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  1. science fair project ideas
  2. Percent acetic acid by weight
  3. [SOLVED] an AP chem free response (please help!!)
  4. Chemical Bonding
  5. activation energy
  6. how many isomers does C4H9Br have?
  7. Enthalpy of Combustion for Magnesium
  8. Phosphate Buffers
  9. Rates of Reaction
  10. Show size relationship between protons, neutrons and electrons using the AMU in model
  11. Gaseous Oxygen = Paramagnetic?
  12. Reactions
  13. Calculating heat of combustion
  14. organic chem
  15. Chemistry help-forces
  16. packing of particles
  17. Nomenclature
  18. Karyotypes
  19. Stoichiometry
  20. electrolysis
  21. Solubility
  22. Net ionic compounds
  23. General Chemistry Questions (Solubility)
  24. Molarity and Reactants
  25. weak acids
  26. unanswered chemistry question (from a test)
  27. Stoichiometry, Part II (and Percentage Yield)
  28. Pka and solubility
  29. Eudiometery(pls help me)
  30. Why is this ion more paramagnetic?
  31. Mating, how many offspring?
  32. Cellular Viability
  33. Help
  34. Net Ionic
  35. botany questions
  36. Recrystallization Questions - help needed urgent!
  37. A pH problem
  38. Beet Root Cell Permeability
  39. HELP with unknown Monobasic HA question!!
  40. Plz i need to interview someone
  41. Help with molecular geometry!
  42. What is spin?
  43. Heat Question
  44. Photosynthesis - urgent help!
  45. Ionization Energy
  46. Physical Science Calculations NEED HELP ASAP
  47. intro Thermodynamic question
  48. Molecules
  49. PLEASE HELP!!! Ionization Energy Question
  50. Hemoglobin binding
  51. Making a buffer
  52. Help, homework question!
  53. Polyatomic ions, -ate and -ite suffixes
  54. Balancing Equations
  55. FAQ: Why hasn't anybody answered my question?
  56. Calculating net charge
  57. [Chemistry] colligative properties
  58. immediate help rate of reaction
  59. pka vs ph
  60. mother of all equations
  61. Please help me in finding this relative molecular weight
  62. pH of an acetic acid
  63. Degree of Dissociation
  64. Molality creating problems for me!!!!
  65. mass of a star
  66. Sordaria Questions
  67. Help with meiosis
  68. Dipoles
  69. Vapor Pressure Lowering
  70. Acid-Base Reaction question
  71. Citral
  72. Nucleophile
  73. simple physiology questions
  74. Concentration Graphs: Instantaneous time
  75. Reductions of C=O
  76. Could someone check this for me? (photon and wavelength)
  77. Bunch of Equations and Stoichiometry...
  78. disscusion for Bio Experiment
  79. Double Dispalcement Reactiosn
  80. Chemistry Help!
  81. Precipitation Reaction
  82. Molality
  83. cryptography question--how to solve a Ceaser Cipher
  84. entropy #1
  85. entropy #2
  86. chemistry help
  87. cellular respiration biology lab discussion
  88. lead oxide + base
  89. dodecahedral metal coordination?
  90. Chemistry-help please
  91. kinetics of an iodine clock reaction?????
  92. Three essential fatty acids
  93. Proper Compound Preparation
  94. Kf of Iron(III)Thiocyanate?
  95. my textook=wrong?
  96. help with light, wavelength, and photons
  97. check this please
  98. Cars & Corrosion
  99. ACID-BASE Equilibria
  100. [chem]Lewis Structure-Expanded Valence Shell
  101. problem of day 24- help
  102. explain this
  103. Chemistry question..pretty urgent..
  104. Chemistry: Algebra Combining Equations [Enthalpy]
  105. Chemistry - Stoichiometry - Some limiting reactants
  106. Freezing point
  107. Chem Problem I don't get
  108. mixture or substance?
  109. Sphere equation?
  110. Can't seem to match final answer!!
  111. rates of reaction
  112. i need help! soap is too complex
  113. is anyone in
  114. Quick question!
  115. DOUBLE Replacement Reactions
  116. Factor(s) that affect percent yield
  117. Genetics-Two heterozygous brown-eyed (Bb) ...
  118. reducing and oxidizing agents
  119. Pls help
  120. Quick Chemistry Question!
  121. total # of electrons transferred
  122. Enthalpy of Dissolution vs. Enthalpy of Solution
  123. redox reactions
  124. P.V = n.R.T
  125. Biochemistry pathologies.. ??
  126. error bars?help needed on enzymes
  127. Mass Spectrometer Question!
  128. Help With Half Reaction/Redox Equation
  129. Genetics Problem
  130. The Empericial Formula
  131. chemistry - test- help
  132. elements
  133. Endosomes
  134. Stoichiometry
  135. Help with Chemistry problem
  136. Electromagnetic Radiation
  137. Equation Help
  138. Determine the phenotypes of progrency
  139. Column Chromotography
  140. Question on Endo/Exothermic reactions
  141. Problem with titration problem Please HELP!!!
  142. equilibrium question
  143. Chi-Square Test
  144. nuclides question
  145. Ionization Energy
  146. explanations of variations in errors with regards to enzymes
  147. The variable R as the Universal Gas Constant
  148. Bismuth sulphide structural diagram
  149. Boiling Points of Liquids..HELP TEST TOMORROW!
  150. Redox Balancing Question
  151. can potato skin effect the rate at which catalase breaks down hydrogen peroxide
  152. gas laws corrections
  153. Alkali Metals and Ionization Energy
  154. Amphoteric Oxides.
  155. Electron Configuration
  156. ic suffix in chem nomenclature
  157. help me to answer these questions...
  158. Net Ionic Equations
  159. Chem problem
  160. Benedict's Solution
  161. Totally lost in a chem lab report
  162. Gas and Equilibrium Questions
  163. Molar fraction !
  164. Factors affecting performance of Antacids
  165. Chemistry Grade 12 Help|URGENT
  166. Copper ions + CuIIClsub2AL
  167. Measuring the pH of an acid
  168. Orbitals in Bond Formation
  169. Grade 7 pH question.
  170. Homologous or Analogous Features?? HELP! PLZ
  171. Help needed...molar Fraction !
  172. some help please
  173. electrons on outer ring (transition metals)
  174. Resonance Structures
  175. The Sun and Nuclear Power Plants
  176. Using A Centigram Balance
  177. Balancing [Redox] Equations
  178. enthalpy change & lattice energy - check please
  179. ionic or covalent- Please check
  180. lewis structure- and bases check please
  181. ionic or covalent- check this please
  182. Dipole moment of water
  183. Standard Heat of Formation Question
  184. Homework Problem
  185. Reducing Agents
  186. Inorganic chemistry help
  187. Acid/Base Question
  188. pH-calculation
  189. Stoichiometry problem
  190. Nedd help with Friedel Crafts alkylation
  191. Donnan Equation
  192. Could someone help me please?
  193. Cycles of Matter
  194. Concentration and pressure problem. Need help!
  195. Acid base titration problem. Need Help!
  196. Help with percent concentration of hydrogen peroxide if diluted?
  197. Antarctica Assignment
  198. Energy Flow
  199. [CHEM] Equlibrium Help plz!
  200. thermodynamics
  201. Plastics,etc questions
  202. Chemistry Concept Map
  203. pH scale
  204. Chemistry Grade 11 - CuSO4 hydrous/anhydrous help!
  205. Acid-Base Reaction
  206. am i overcomplicating things?
  207. Redox Question
  208. converting with moles (chem20)
  209. Landfill problem
  210. Balancing redox equation
  211. - Mole and Avogadro's Number -
  212. chiral help?
  213. Endothermic and Exothermic
  214. Clausius-Clapeyron equation
  215. Adding Acid to buffered solution
  216. please help
  217. NEED HELP!!! what is the difference between a fat cell and a lipid?¿?
  218. beer lambert equation and concentration
  219. Calorimetry and Water
  220. Hess' Laws
  221. Why are spontaneous reactions usually exothermic?
  222. If you prepare 1/10 dilution of 10mg/ml..
  223. periodic table
  224. Narrow sense hertiablility
  225. lead and calorimetry
  226. Heat Capacity and Heat
  227. Colligative Properties of Nonelectrolyte Solutions
  228. quick question . . . .
  229. Pz help
  230. Enthalpy of Reaction question
  231. what the title should be?
  232. Quick organic chemistry question
  233. Urgent Help Plzzz
  234. Urgent Help with IUPAC
  235. bohr's model
  236. Help! How to get the mole fraction ?
  237. balancin an equation!!!
  238. trans-2-pentene
  239. copper iron zinc correlation
  240. XeF6
  241. Anions and Cations
  242. Deductive Essay
  243. Organic Nomenclature and Simple Reactions
  244. Erosion Control
  245. Melting Point of three compounds
  246. molecular geometry
  247. Cation solutions
  248. Calculate concentration of halfcell
  249. Pressure and Kinetic Energy of Gases
  250. Soluble Cations and Anions
  251. Sucralose molecule formula - help, please?
  252. Vapor Pressure
  253. Catabolism!
  254. Chemistry Concept Review
  255. Help Quick!!
  256. Help please!!
  257. Question about activation energy
  258. Help with a reaction equation
  259. Solubility
  260. Polychlorinated Biphenyls
  261. Some help understanding calculated vibrational frequncies
  262. Need Help
  263. Some Questions
  264. Help
  265. DNA molecules
  266. Enthalpy
  267. Forming Compounds
  268. Titration problem
  269. Project Idea Help
  270. mercury battery reaction
  271. Titration Curves
  272. Still am having trouble with titration
  273. air circulation on earth
  274. hydrostatic balance
  275. SN2 reaction
  276. why my answer is wrong? --- remove electron from orbital
  277. chemistry questions
  278. formal charge
  279. biology question
  280. 3D NMR...HNCA Experiment
  281. Chesmistry 12|VSEPER Problems|Quick Problems
  282. optimum orientation of molecule
  283. Kevlar heat resistivity
  284. Fun project
  285. Respiration
  286. Two point estimates am i correct
  287. Physics for people with colds
  288. pH scale Question
  289. Electrolysis Molten Metal Halides (Salts)
  290. Crystalline structures
  291. Kevlar flexibility
  292. help in chemfinder
  293. help about properties of PCB
  294. URGENT- Calibration curve question
  295. IUPAC naming!!!
  296. questions about dative covalent bond and complexes
  297. pink
  298. Thorium Chemical Equations
  299. MO for BrF5
  300. Temperature in Sapce
  301. Entropy
  302. Oil
  303. Chemical Bonds
  304. Insulating
  305. simple enthalpy question
  306. Hess' Law, checking my answer
  307. Calculations of Solubility Product of Lead 2 Chloride
  308. best oxidizing and reducing agent in periodic table
  309. compound/molecure
  310. help asap!!!
  311. How many times more soluble........ ASAP HELP
  312. HELP solubility product determine solubility of lead 2 chloride mol/L and g/L
  313. Electrode Potentials and Complexing
  314. Energy
  315. Paper Chromotography Lab
  316. Lewis Dot Drawings
  317. Hydrochloric Acid & Marble Chips (CaCO3)
  318. Finding pH of a buffer solution
  319. Enzymes
  320. pH levels
  321. heptitis b
  322. Phytoplankton
  323. chemistry coursework, identifying unknown chemicals
  324. Radiocarbon dating? o.O
  325. More Phytoplankton
  326. DNA content...
  327. I need help with calculating the pressure inside my hovercraft.
  328. Fish Help
  329. DNA question
  330. 3 Chem Equations
  331. Chem Question, Reaction Rate
  332. Naming of hydrocarbons
  333. Benzene Problem
  334. Specific Heat Practice
  335. carboxylic acids
  336. Vagus Nerve
  337. Chemistry Questions (alot)
  338. chem empirical questions?
  339. heat questions
  340. Process Calculation
  341. Naming Carboxylic Acids
  342. Reaction of Mg with acids (molat enthalpy and rate of reaction)
  343. How to test if some unknowns are covalent or ionic?
  344. Hello
  345. What on Earth is this?
  346. oil song???
  347. How much acid do i need?
  348. 1st order, 2nd order Rate reactions HELP!!
  349. Food Webs
  350. A few general questions
  351. Some hard questions
  352. Concentration Problem
  353. isomer
  354. Help me understand what a Chromosome and Protein is
  355. Thermodynamics
  356. Potato Core Osmolarity
  357. Osmosis, Solutes, and Solvents
  358. Vapor Pressure
  359. Relative stability of iron ions
  360. Organic Chemistry
  361. Acids and pH
  362. Something about fatty acid
  363. empirical formula question
  364. Chemistry Acid and Base
  365. chemistry acid and base 2
  366. Finding buffer capacities...
  367. When naming an Alcohol
  368. Smallest Heat of Comb.
  369. Electronegativity
  370. Limits of detection/decision/determination
  371. Ecology
  372. Interpolation vs Extrapolation
  373. mass
  374. Question about equilibrium constant
  375. Alkyloxonium Ions and water
  376. K value
  377. Precise/Accurate?
  378. transition metal complexes
  379. Molar Mass of Unknown Solute and Mole Fraction of Gases
  380. atoms/molecules
  381. moles of unknown metal
  382. Intermolecular forces
  383. Osmosis
  384. pH of 10^-7 M acid
  385. product of the reaction
  386. product formed
  387. Equation Confusion
  388. Types of Reactions
  389. some basic chem questions
  390. Ions Table
  391. A Couple of Kinetics Questions
  392. Ocean Currents
  393. Chemistry Question
  394. Basic (Very) chemistry
  395. Acid Base Titration: Finding pH
  396. Signigicant Figures
  397. Reaction Rate and Activation Energy
  398. electrochemistry (solubility)
  399. ATP in Muscle Contractions
  400. more simple chemical changes
  401. Properties Of Solutions
  402. A Lab question antibody recognition
  403. Isotopes
  404. Chemical Equations Balancing
  405. First Order Reaction
  406. Naming Ionic Compounds
  407. Gen Chem
  408. Easy chem
  409. Ammonia
  410. the calvin cycle
  411. General Chemistry
  412. Moles
  413. Organic Chem- acid catalyzed reation
  414. Geology - The Formation of Earthquakes
  415. Molarity
  416. Finding pH
  417. Fill in the missing nucleotide (translation) PLEASE HELP ASAP!
  418. Biology - Cell membrane
  419. Carbohydrates
  420. Ion Concentrations and Equilibrium
  421. Chem Lab Help Please
  422. seperating mixtures
  423. Determining the product of a reaction based on mean wt% and Standard Deviation
  424. Chemistry - calculating equilibrium constant, what am I doing wrong?
  425. Philosophy Paper
  426. Finding Equilibrium Constants
  427. Entropy changes for reactions: Understanding Periodic Trends ...
  428. Equilibrium equations
  429. Shifts in Equilibrium
  430. Delta
  431. Ionic equilibrium - hint needed
  432. Spider Silk
  433. College Biology Help
  434. Genetics Problem
  435. Products?
  436. Qsp Calculations
  437. Rate Law quick question
  438. Finding Michaelis-menten constant and Vmax
  439. Functional group in esters
  440. crystal lattice and unit cell
  441. Stoichiometry Practice Problems
  442. electron configuration
  443. Why does germanium have a greater electronegativity than phosphorus?
  444. Catalyst
  445. Macroscopic property
  446. Chemical Reaction
  447. net ionic equations
  448. Biology genetic question
  449. another bio question
  450. last bio question
  451. pH with 2 acids
  452. Proton NMR (Enantiomer vs. Diastereomer)
  453. Stoichiometry Mole Conversion Problems
  454. bio question...lactose intolerance
  455. Hydrates
  456. net ionic equation (need help)
  457. from empirical formula to molecular formula (need help)
  458. The "Enchanted" Cardboard Experiment
  459. Beta amino acids
  460. Balancing Redox Equations
  461. Drawing a genetic map (recombination)
  462. questions from a lab on pH and water
  463. question on DNA gel analysis
  464. I need help on a chemistry problem.. PLEASEEE
  465. Vapor pressure of Water calculation
  466. What are the most abundant elements in the Biosphere?
  467. Acid and Base Equilibrium Question
  468. Electrolysis of water - Hydrogen
  469. Project Idea
  470. Hydrogen
  471. catalyst
  472. Egg White Protein Structure Change
  473. Ammonia - Fritz Haber
  474. Ammonia Fire
  475. Effect of raising temperature on equilibrium constant?
  476. Changes of State.. ice to steam problem
  477. bioethanol production
  478. Enthalpy change
  479. Glycosides
  480. Chemical Bonding in Hydrocarbon
  481. Chem Lab: Acids and Bases
  482. Degredation of Glucose
  483. Elimination reactions of Haloalkanes. Help!
  484. Ionisation constants
  485. Heat of reaction
  486. Exothermic reaction
  487. Born-Haber Process
  488. Finding Molar Heat of a Solution
  489. Rate Law problems
  490. Internal Glycosides / anhydrosugars
  491. Acid Strength and Conjugate Bases
  492. Incomplete/ Reversible reaction
  493. Le Chatelier Principle
  494. Chemistry Reduction Reaction Help Needed
  495. Chemistry Homework Help
  496. pH and the Acid Dissociation Constant
  497. the thesis statement
  498. Simple question about microorganisms
  499. Acid Equilibrium
  500. Chemical Kinetics Question
  501. an enzyme lab
  502. Two Tricky Problems
  503. pOH and Dissociation Constant
  504. pH of solution (not enough infromation?)
  505. Chemistry Help!
  506. Can some one explain balacing chemical equations to me
  507. A Solution's pH
  508. The Cartesian Diver Experiment
  509. Intro Chemistry: Does this look ok?
  510. Buffer Question
  511. biology related science fair ideas?
  512. Temperature and Pressure
  513. Experiment's ph, simple i think
  514. neurons and axons
  515. lewis acid/base
  516. the process of meiosis
  517. Reaction problem
  518. left or right hand material
  519. Electron Dot Structure
  520. Sodium dodecylbenzene sulfonate- What is it?
  521. whats the difference between a reactant and a reagent?
  522. Limiting Reactant Problems Stoichiometry
  523. A few more Stoichiometry Questions!!
  524. Neutralization with equilibrium
  525. Question on the periodic table
  526. Hydroxylamine
  527. Iron Contents of Soft Drinks and Alcoholic Beverages
  528. Reaction- Wierd
  529. Cation and Anion Help pLease
  530. Probability question
  531. Chem - Equilibrium
  532. Figuring molecule shapes and polarity
  533. pH of Salts
  534. Photosynthesis question...
  535. Simple yet interesting project in Bio
  536. tidal locking radius
  537. How Do you create a ball n stick model?
  538. Food Preservation
  539. Enthalpy of Reactions - can someone help me real quick?
  540. determining pH problem, help please
  541. syntesis of [(Ph3P)2CuS2MoS2Cu(PPh3)]
  542. Basic 3-body problem
  543. Ionic or Molecular
  544. Monatomic ion dot diagram
  545. Liquid-Solid Cooling Curves
  546. Laser Beams
  547. molar mass
  548. Partial Pressure Equilibrium lab
  549. equation showing formation of a compound
  550. Rock Salt Ceramic Structure
  551. Enthalpy
  552. Finding K_sp
  553. Bunny in a Vacuum
  554. Decomposition
  555. Partial Pressure problem with three tanks, only [atm] and [L] are given. H2, N2, CO2
  556. Measuring Heat Changes
  557. Static Substrate - Collisions
  558. Equilibrium Concentration
  559. Please help! Molecular formula Q
  560. Standard Rf Values - Biology (Photosynthesis)
  561. Haemoglobin properties.
  562. Acid-Base Reaction
  563. melting point
  564. Research of strucutre
  565. Some simple chemical reaction help
  566. Biology Question: G3P and Pyruvate
  567. Acid-Base Chemistry question
  568. Please help me
  569. Fe-N bond!
  570. structural analysis: matrix question
  571. Conjugate Base
  572. Stoichiometry and Gas Laws - Please help
  573. Net Ionic Equations
  574. Could You Glow in the Dark?
  575. Organic Chemistry - Camphor Synthesis
  576. whats is this equation?
  577. please HELP! Could You Glow in the Dark?
  578. Double Replacement
  579. Bromcresol Green
  580. Chemical bonding - spin of bonded electrons
  581. color and the relation to d orbitals
  582. Very simple inorganic chemical reaction HELP!
  583. Simple Chemistry Problem - Please help!
  584. Synthesis Reactions---Help
  585. Balancing Chemical Equations
  586. precipitate
  587. Renal Response to Hydrated Exercise?
  588. Buffer Capacity
  589. Equilibrum
  590. Solar Radiation Question
  591. Organic Chemistry: are these answers correct?
  592. Fun and interesting question
  593. Respiration
  594. Biology PLEASE HELP!!! wot is m.lutea?
  595. Excited energy level
  596. Chemistry in the Real World - Super Quick Question on chemistry/pools
  597. Spontaneous Reactions and Molar Entropy
  598. Solubility question, please help
  599. Molarity
  600. reaction at the cathode
  601. The Enthalpy of MgO(s) + 2HCl(aq)
  602. Nuclear Energy Question
  603. Whats isoamyl???
  604. potassium permanganate and oxalic acid
  605. chemistry problems Moles
  606. Turbine Design Question
  607. acid-base stuffs
  608. Entropy and Equilibrium Constant
  609. Standard Change in Free Energy
  610. Le Chatelier's principle
  611. Huntington's chorea genotype - HH?
  612. percentage composition
  613. Spectrometer?
  614. "The Chemical Basis of Industry"
  615. techniques comparison
  616. Calculating Free Energy
  617. Are calories actually burned?
  618. Question check... calorie question
  619. need major help
  620. Surface Tension And Polarity Of Molecules
  621. "Exploring the Abyss"-- Food Webs of the Sea
  622. sunlight a catalyst for vitamin C oxidation?
  623. Sunlight a catalyst for vitamin C oxidation?
  624. Retrosynthetic analysis
  625. certain elimination reaction
  626. Determination of Faraday's
  627. Faraday's calculated
  628. Electrochemistry II. Electrolsis
  629. why Cl more active than Cl-
  630. what will be my bi-prducts
  631. Marine Biology- Waves and Their Characteristics
  632. solving for pH with diprotic/triprotic acids
  633. Sources of errors on Determinating Faraday's Constant experiment
  634. Reducing Agents and Standard Reduction Potentials
  635. IR spectrum help
  636. Organic Chemistry doubt
  637. Spin-orbit effects splits !?
  638. Organic Chemistry
  639. How do i explain this bond
  640. Transition Elements (Naming Substances) check answers
  641. rates of reaction
  642. Formation of compounds (Organic Chemistry)
  643. pH of a mixture
  644. Calcuations
  645. molecular formula
  646. heat of reaction
  647. Fick and Cottrell Law
  648. A rather simple prb.
  649. Chemical Equilibrium (answer check)
  650. Calculating Ksp of salt (answer check)
  651. Equilibrium question (check answer)
  652. excess reactant...
  653. Bond Dissociation Energies (BDE) help, please!
  654. Confused... please help
  655. lewis structure help
  656. calculations- molar concentrations PLS HELP
  657. Osmotic Pressure
  658. Industrial Preparation of Gases
  659. Therhelp !!!! modynamics and the equilibrium constant
  660. Could Somebody Please Help Me
  661. Question about a base
  662. Salt Dissolution Help
  663. Making Ethanol
  664. Nitrogen - Lab Preparation
  665. Acid dissociation constant
  666. Pleas help! Chemistry calculations
  667. need help with a topic discussed in class
  668. General Chemistry - gibbs free energy
  669. Acid rain
  670. pH calculation
  671. Motion, Forces, & Energy
  672. Electrochemistry problem ?
  673. Chemistry pH problem
  674. Quick question: Grade 12 stuff (Heat capacity)
  675. Real life application of thermodynamics: Heat transfer/capacity/energy
  676. Electrode potentials
  677. What is the relationship between the amu and the gram?
  678. Belousov-Zhabotinsky oscillating reaction
  679. SO LOST!...redox reactions
  680. How can I figure this out?
  681. Karyotypes
  682. Acids & Bases: Arrhenius, Brønsted-Lowry, and Lewis
  683. can someone help with this problem: Standard enthalpy
  684. Weight combination by percent
  685. Molecular and Ionic bonds
  686. electrochemical cells lab
  687. Redox Reaction
  688. Reacting Gases
  689. Polymerization Termination
  690. solubility product
  691. Joules help?
  692. Efficiency
  693. Solutions
  694. Chemistry help.
  695. Alcohol Combustion Which fuel is best
  696. Quick question-precipitate
  697. neutralization calculations
  698. Questions on HCl and H2SO4 reactions
  699. In desperate need of help!
  700. empirical formula?
  701. ferric oxide solubility
  702. [Biology] Nervous System
  703. Blue Bottle Demostration
  704. So lost on this problem-HELP
  705. Maximum Pressure over a Reaction
  706. pH Scales
  707. Algae in Household Products
  708. Can anyone help me solve this?
  709. Miscellaneous calculation with moles, mass and gas volume
  710. Entropy per unit mass question (ds)
  711. Gases
  712. "Acids, Bases, and the Chemistry of Taste"
  713. Chemistry II: Determining a rate of a Solid
  714. Enthalpy
  715. gene
  716. Few Chemistry Questions
  717. Solubility question
  718. Oxidation and Reduction
  719. manganese redox reactions
  720. Calorimeter help
  721. writing equations
  722. hybridization/geometry...
  723. iron ore extraction
  724. Integrated rate law
  725. Desalination of water
  726. Potential of Ag/Ag+ electrode
  727. Molarity to mass % (acetic acid)
  728. Neutralisation
  729. Heat of dilution
  730. Cathodic protection
  731. Chemical Reaction Between HF and H2O2
  732. Chemistry exam qn
  733. The Science of Everything
  734. ph and buffer solutions help
  735. fossil fuel?
  736. [Question]Fluorescence quenching and artificial photosynthesis
  737. Chemistry book for IIT JEE
  738. Calclulating pH/pKa's
  739. Equilibrium
  740. Atomic radii for irridium
  741. Radiation
  742. Im so lost in this Problem
  743. volume of pool acid
  744. Gps
  745. chemistry review questions-calculations
  746. Heat of Combustion
  747. Heat Transfer!!
  748. Help!! Asap!
  749. Heat of Mixing & differential enthalpy of dilution
  750. atomic symbols
  751. Neutralisation Cont'd
  752. Chemistry - Volumetric determination
  753. Molecule
  754. i need help on this.
  755. i need help on this.
  756. Mixture
  757. Numerical Chemistry
  758. Group VI elements
  759. Properties Of ionic and covalent
  760. Elements, Compounds and Mixture
  761. compound and molecule?
  762. Ionic compound
  763. Chemical rxn help
  764. Blanks in Mohr Titration?
  765. What is the Shelf life of Mustard and Sarin?
  766. How to convert boric acid to boric oxide
  767. Determining State of Matter for a Compound
  768. hydrophobic and hydrophilic
  769. equation for lactose --> glucose
  770. precipitation reactions
  771. Stoichiometry Help
  772. When to use double and when to use triple bonds?
  773. Mixture of saturated liquid and saturated vapor
  774. Physical properties
  775. alkalinity OH and free acid value CH3OOH
  776. [SOLVED] Ionization and light
  777. Dissociation Constant Homework Check
  778. gases
  779. Balance Half-Cell Equation
  780. Bleach Oxidation Reactions
  781. Enthalpy
  782. line spectra
  783. Corrosion experiment and Control
  784. Figuring sum of double bonds and rings ??
  785. Hello!
  786. brain activity practice exam question
  787. Amphoteric compounds-effect of pH
  788. ionic formulae
  789. chemical equation
  790. energy
  791. Chemical Reaction...
  792. Basic stoichiometry question
  793. Stoichiometry problem
  794. Stoichiometry Help
  795. compare concentrations
  796. electron configuration of cation
  797. (ceramics) probability P of site adjacent to diffusing species being vacant...
  798. (ceramics) transport number
  799. (ceramics) semiconductors
  800. Are these structures the same?
  801. pH and Concentration
  802. ionic equations?
  803. potassium alum
  804. Enthalpy of hydration
  805. vsepr
  806. Molecular Orbital Diagrams
  807. Packing of Particles
  808. Net Ionic Equation
  809. help with root mean square speed
  810. Adding Net Ionic Equations
  811. doubt about flourine and bromine
  812. just checking answer for effusion
  813. Drawing molecules
  814. Help with Chem rate of reaction problem
  815. ART'S ( assisted reproduction technology)
  816. pH of Hydroclauric acid
  817. Law of Conservation of Energy
  818. Dilutions
  819. Solubility problem
  820. Bonding etc.
  821. help
  822. Adding Acids or Bases to Buffered Solutions
  823. Ksp - Prelab help
  824. Which of these metals can be plated out from the solution by electrolysis?
  825. Redox Reaction
  826. Polarising ability
  827. Simple Problem help
  828. to oxidize and to be oxidized , the same meanings?
  829. Chemistry Help
  830. Percentage of NH3???
  831. moles please help
  832. Need Help In Logic / Natural Deduction
  833. Carboxyl acid strength and electronegativity... How do they relate??
  834. Isomerism
  835. trouble w/ calculations
  836. definition of pathogen
  837. Calculating the % error & maximum error
  838. I need help calculating the maximum pressure
  839. Dilution and gravimetric problems
  840. Titration Caculation
  841. Which one is the correct equation?
  842. how big is the world
  843. Arranging Chemical reactions into
  844. high tide
  845. i need help on Speed of reaction
  846. Reverse Reactions
  847. Differential Rate Law of Complex Reactions
  848. Need Help on a Few Chem Problems
  849. decayed plants
  850. Help writing a few basic formulae
  851. Bonding
  852. Bonding
  853. Dihydro Benzene is more polar than Dichloro benzene
  854. Banana Leaf Extract As A Glass Cleaner?
  855. Hybridisation - FeCl2
  856. Mtbe （c5h12o）
  857. Question: Solubility
  858. easy question
  859. Reactants of Photosynthesis & Respiration (as well as the product)
  860. Energy Source of Respiration
  861. Sources of Electrons
  862. Need some help on some Chemistry calculations
  863. Not sure what the question is asking...
  864. Quantum Physics
  865. Bio Question
  866. Molality Question
  867. Ionization energy and speed of electron
  868. Special Electronic Configurations
  869. Equation Help
  870. I need assistance on this chem problem
  871. Which elements "travel in pairs"?
  872. Need assistance with Gen Chem problem
  873. Conversion
  874. Chem. Lab
  875. Liters of CO2 produced by 8.4 g NaHCO3...
  876. Chem/phys question not sure what this is
  877. Relativity Theory
  878. [SOLVED] Viruses - Dead or Alive?
  879. Merchanics problem
  880. Chemical Kinetics
  881. 1 mol of co2 in NaHCO3
  882. Chem AP, High school help needed
  883. Identifying Intermediates in chemical kinetics
  884. HS AP Chem question - mass % of each compound in a sample
  885. Substance's Solubility, Acids, and Bases
  886. A pH question
  887. does water molecules exist in KOH(aq)?
  888. Organic Compounds
  889. One isotope of a metallic element has mass number 59 and 31 neutrons in the nucleus.
  890. Chemistry Math Help!
  891. Homework help
  892. Explain the sigma and pie bonds in hybridization?
  893. Chemical Equilibrium
  894. S.I. reportable form
  895. Ether and Motrin
  896. Calculating a reverse reaction
  897. 2 Questions:metling point in unsaturated fat; nerve impulses
  898. Avagadro number
  899. Marginal Benefit
  900. Chemistry - Net ionic equations, ionic solids..!
  901. Iron ppt? Inorganic reactions
  902. Finding the P of a reactant after t seconds
  903. Ranking Compounds By Polarity
  904. Viscosity
  905. Law of Multiple Proportions
  906. law of multiple proportions
  907. pleaz helpo me solve this chmeical calculation??
  908. Electrophilic addition, elimination and stuff like that
  909. LaTeX document
  910. really need help!!!!!
  911. Human Volume
  912. Difference quotients
  913. pKa vs solubility question
  914. Alternate Fuels
  915. help me
  916. Spectroscopy Lab Conceptual Question
  917. Biology - Osmosis?
  918. radioactive decay equilibrium when decay constants are equal
  919. reaction between CuCl2 + Al
  920. Copper electropurification
  921. Repulsive and Attractive Forces that influence chemical bonds?
  922. Inorganic Ligand Naming Question
  923. Need Help NAmimg-Organic Chemistry
  924. Intensity on IR-spectrum
  925. Question about osmosis and osmotic pressure
  926. Question regarding buffer
  927. Chem.
  928. Why do aspirin tablets taste sour?
  929. Creating periodic table w/ quantum numbers
  930. The shape of Copper Tetraamine Complex
  931. need a bit of homework help about % mass of elements
  932. % error --finding the accepted value
  933. Periodic Table question
  934. Need help on chemistry, solution problems.
  935. Chemistry - Specific Heat Of Metals
  936. Chemistry Help Please!
  937. Chemistry Help - Magnesium Carbonate decomposition
  938. How many atoms are there in 3.90 moles of sulfur (S)?
  939. I need help could someone please help me with this problem?
  940. What is the mass in grams of a single atom
  941. Just a simple question on a reaction...
  942. Electropolishing
  943. Bios
  944. Desperate Need of Help!!!
  945. Chem lab, check it over for me please?
  946. Chemistry - Gas Laws Problem 1
  947. lab help (chem 12 adv)
  948. Saturated Fatty Acids
  949. Packing density question (HCP/CCP/BC)
  950. Chemistry-Physical Changes and Intermolecular Forces
  951. Packing (HCP/CCP) comparing volume
  952. How many Cr atoms in 78.82 g potassium dichromate?
  953. Potassium Alum
  954. phase change calorimetry problem
  955. chemical reactions and stoichiometry
  956. Plz Help Asap
  957. Acid Base Reaction, please help
  958. Acid and Base Quesions
  959. Chemistry - Net Ionic equation
  960. Chem - freeze drying & equilibrium
  961. Chemistry Homework Problem?
  962. Chemical Reaction help?
  963. Strong/weak acids/bases and their salts
  964. Chemistry homework problem?
  965. Chemistry lab formulas?
  966. Pre-Lab Question
  967. Average Value
  968. Soil Physics: Mixing different soils
  969. Chemistry Pre-Lab Question
  970. Cis/trans disubstituted cyclohexanes help
  971. Finding the pH of TSP
  972. Chemistry: Make up of Tea
  973. Half-Life
  974. Why is H+ usually written as H3O+?
  975. Chemistry Ques. re: structure of organic compounds
  976. Toledo Placement Exam
  977. chem lab help..~!
  978. question on ionisation energy
  979. Quantum Chemistry question
  980. uncertainty in measurements
  981. Question on Gene expression!!!???
  982. acids/bases
  983. Moles of ions in aqueous solution
  984. polarity and distribution coefficient
  985. Emission Spectra for Elements and Compounds
  986. Air Bubbles
  987. Check Ochem reaction please
  988. Balancing question
  989. third part to a stoichiometry question
  990. weight percentage / stoichiometry
  991. Net Ionic Equations
  992. Environmental Science...help!!!
  993. Adding Back Spectator Ions When Balancing Equations
  994. Isoelectric Point
  995. insulin
  996. 2 chemistry questions
  997. Earth Science problem
  998. Geology Help
  999. Net ionic equations (NaOH; HCl; H2O)
  1000. Calcium Carbonate CaCO3
  1001. weight %
  1002. empirical formula / checking an answer
  1003. two step: mass-mass question
  1004. Needed Heats of Formation
  1005. Chem Valence electron question
  1006. Astronomy question
  1007. Ionization Energy
  1008. molarity
  1009. Interesting Question About Classical Mech
  1010. The oxidation number of nitrogen in the following compounds.
  1011. Simple Question...probably making it harder than it is
  1012. hypochlorite and thiosulfate
  1013. de Broglie or Schrodinger?
  1014. Quick Question...not sure if im understanding what this question is asking
  1015. Confusion with the gas constant!
  1016. this lab is driving me crazy
  1017. Electron shell and subshell
  1018. Chem Lab "ID of Unknowns"
  1019. Wavelength question
  1020. Drawing Electron Promotion (Hybridization)-Question/Help
  1021. Diethylene glycol in WINE question help please CHEMISTRY gr 12
  1022. The Lewis/Structure Diagram of NOF3?
  1023. Redox Titrations question
  1024. pH and buffer solutions
  1025. Please Help Me this is Tough
  1026. Chemistry - Volumetric Analysis I can't do this
  1027. AND and OR circuits
  1028. Acid-Catalyzed Hydrolysis
  1029. Who can explain to me how they get the work?
  1030. Hiden. . . Chlorine
  1031. Intensive or extensive variables.
  1032. Acid-Catalyzed Hydrolysis
  1033. Please Help me with some Chemistry Questions
  1034. Empirical Formula for Magnesium Oxide
  1035. Stoiciometry. Finding mass and formula
  1036. Protonation of Halogens in PVC
  1037. Voltage question
  1038. molecular formula question
  1039. Biochemistry (Enzyme Kinetics)
  1040. What is the difference between structural isomerism and geometric isomerism??
  1041. How to calculate the pI of a peptide??
  1042. The synthesis of Deuterium-and tritium labeled compounds
  1043. Half-Reaction?
  1044. Most stable isomer
  1045. Chemistry Problem/puzzle
  1046. Urgent Help Needed!! (gases)
  1047. acid/base balancing question (given products)
  1048. A Foucaultian Genealogy of Exams
  1049. X=n?
  1050. does methanol or propanol release more heat?
  1051. Gas Chromatography
  1052. Help with structural formula and resonance structure
  1053. equilibrium
  1054. reactivity
  1055. Bohr energy equation and Ionization energy
  1056. oxygen absorber
  1057. CHEMISTRY: Nomenclature. HELP!
  1058. Standardization of An Acid
  1059. frequency question
  1060. quantum number / orbital question
  1061. Ideal gas help
  1062. Help with Stoichiometry and Volumetric Analysis
  1063. Blowing up hydrogen and oxygen falls under what?
  1064. Transition metal organometallics and the 18th rule
  1065. Eudiometry question
  1066. Net Ionic Correct?
  1067. Energy change to form KI(s)
  1068. Uncertainties and Averages
  1069. mass question - please dumb it down for me
  1070. Issue with Mass Loss in Experiment
  1071. How long does a cell live outside a living host?
  1072. Biology Help !!
  1073. Question on Emission Spectroscopy
  1074. beginner chemistry
  1075. another mass percentage problem
  1076. Chem
  1077. Enthalapy of Formation - HELP
  1078. Enthalapy of Formation - HELP
  1079. quantum number question
  1080. Basicity of certain sites
  1081. Why is this so?
  1082. Need help on a Chem Question...
  1083. Ideal Gas Law problem
  1084. Titration
  1085. Calculating empirical formula
  1086. Chemistry Lab- Flame Tests
  1087. bio/chem relation between pH and [H+]
  1088. naturally occurring acid base buffering system in an organism
  1089. Earth science, surface energy balance
  1090. light ray travel
  1091. naming organic compounds help plzzz
  1092. Gas mixture problem!
  1093. Chemistry - Limiting reagents
  1094. molecular formula
  1095. Enthalpy
  1096. Net Ionic Equation clarification...
  1097. A lot of BIOLOGY questions!!
  1098. BIOLOGY long ans. questions
  1099. Did carbon exist naturally in Earth?
  1100. Acid rain affect on the environment
  1101. Dehydration of 2-butanol
  1102. Specific Heat
  1103. Specific Heat
  1104. Help Now!! Amine Naming Urgent!
  1105. What chemicals are in generic 2 cycle motor oil?
  1106. Communication Project
  1107. Formula for "Heavy Paraffinic Base Oil"?
  1108. What makes one smarter than the other?
  1109. Can anyone explain me this question
  1110. Which of the following is a chemical reaction?
  1111. Actinomyces Israelii
  1112. valence electrons
  1113. Titration - Calculating the endpoint
  1114. Chemistry - Titration, Redox, Combining Equations
  1115. Net Ionic Equations!! Please help me out!
  1116. Net Ionic Equations!! Please help me out!
  1117. what is
  1118. Polyolefins
  1119. Redox Titrations
  1120. redox reactions
  1121. Specific heat capacity of cyclohexanone
  1122. Absolute Error calculation?
  1123. electronic configurations for ions
  1124. periodic table help
  1125. Need Help solving for X and Y in a molecule
  1126. electrochemistry doubts
  1127. Golgi apparatus
  1128. Quinine
  1129. Equilibrium
  1130. Principal Quantum Number
  1131. Accretion Time of Earth
  1132. Adding energy for enthalpies of formation by increasing velocity?
  1133. features in the molecular structure of a compound that affect solubility mp,bp.
  1134. Buffer action
  1135. Electromagnetic Radiation
  1136. How to calculate volume and thickness of aluminum?
  1137. Synthesis of Isopentyl Acetate question
  1138. Need Help please!!!
  1139. Naming Organic Compounds
  1140. Concentrations of Fe(2+) ions
  1141. Endoplasmic reticulum?
  1142. Blue Color from Copper (II) Ions?
  1143. molar mass of gas X... pls help
  1144. A limiting Reagent Problem: Check My work!
  1145. Pressure Question: Ideal Gas
  1146. Quick Question about Heat!
  1147. Balancing Vinegar and Baking soda equation
  1148. Dna and Protein?
  1149. Glucose anaylsis of sports drinks
  1150. Thermochemistry Lab: Need help on finding a suitable double displacement reaction
  1151. thermodynamics problem - need help
  1152. please help - chemical bonding and energy change
  1153. resonance forms and bond strength
  1154. energy and periodic trends
  1155. Covalent?
  1156. resonance of HCO3^- and sigma/pi bonds
  1157. resonance of HCO3^- and sigma/pi bonds
  1158. lone pairs on central atom
  1159. Noble Gas Configuration
  1160. Help lol
  1161. Number of moles = volume/molar mass?
  1162. Chemical equations help
  1163. Chemical Formula-Must Have Help Today!
  1164. HELP! Chemical Formula
  1165. Help!: Nernst and reversal potentials
  1166. I need help...
  1167. Ionization and electron acquisition help!
  1168. Nernst potential and reverse potentials
  1169. Chirality Questions - Need Answers Checked
  1170. Vle
  1171. magnesium nitrate is a salt?
  1172. Help?
  1173. Need Info On The Human Genome Project
  1174. Equilibrium Constant
  1175. Dehydration of Alcohols
  1176. Does anyone know the chemical formula of cheese?!
  1177. does this system have memory or memoryless??and why??
  1178. How to write an equation for buffer reacting with excess base?
  1179. Enthalpy of formation
  1180. Eukaryote Evolution
  1181. Quantum Numbers
  1182. Strong and Weak Electrolytes
  1183. Basic chemistry questions
  1184. "The Rate Law" in Chemistry
  1185. Chemistry Equations
  1186. kinetics of metals reacting with acids
  1187. Oxidation - Reduction with copper and zinc
  1188. ph calculations
  1189. Vapour Pressure and Henry's Law
  1190. Chemical equations
  1191. Need help with organic chemistry lab!!!
  1192. Coordinate Covalent Bonds
  1193. Chemistry problem
  1194. Hydrate and NaOH reaction
  1195. MOLE Percentage
  1196. Chemistry HW PLEASE HELP ME!!!!!!!!
  1197. Activation energy for oxidation of ascorbic acid.
  1198. please help me with my chemistry homework
  1199. What is this chemical formula of?
  1200. [SOLVED] Is there potassium in coffee
  1201. Margules' 3 suffix equations for binary solution derivation
  1202. atom model
  1203. history of cloning
  1204. My essay on the atmospheric boundary layer
  1205. My essay on evolution, please comment
  1206. Stearic acid problem
  1207. Nucleophilic Substitution
  1208. Preparation of Alkyl Halide from Alcohol
  1209. Redox reaction, changing a solution from yellow to blue
  1210. politics presentation on immigration
  1211. identifying a tertiary alcohol
  1212. Lewis Structure for IF3
  1213. liquid seperation of B-carotene and Chlorophyll-a
  1214. Bronsted acids and bases
  1215. Redox Reaction
  1216. Beetroot, pigment and temperature
  1217. redox
  1218. Organic chemistry problem
  1219. Energy levels and quantum numbers
  1220. how do u calculate the mass of a segment of atmosphere?
  1221. Gas Chromatography - relative retention times question
  1222. need help on organic synthesis
  1223. Reactions of hydrocarbons
  1224. Homework Problem. Gases
  1225. Chem, Gases
  1226. Cosmology
  1227. Chem question.. Please help..
  1228. Syncing something with a pulsar
  1229. Questions about West Nile Virus and W.N. encephalitis
  1230. Chem reactions
  1231. Just a Question... very confused
  1232. a question about oxidation
  1233. [BIO]Glocose&glycogen
  1234. Question on Hydrated Molecules
  1235. Hydrogenation of alkynes and alkenes
  1236. SO2 in NaOH
  1237. Titanium 2+ Ion electronic structure?
  1238. Determining gas flow
  1239. Biology Help!!!!
  1240. Grignard Reagents
  1241. Chemistry-acid base equilibria
  1242. Theoretical yield
  1243. (E)-4-hexen-1-ol
  1244. valance electrons please help!
  1245. Astronomy related angle question (more of a Trig Q)
  1246. Acetone derived from conventional petroleum?
  1247. shelf life of Jet fuel JP-5
  1248. stoichiometry help
  1249. Organic chemistry help
  1250. Questions In Electricity And Thermal Physics
  1251. Ionic Radius
  1252. Help Asap
  1253. Chemistry: Molecular Orbital Electronic Configs.
  1254. Enthalpy at constant pressure.
  1255. atomic radius
  1256. quick ionic radius
  1257. Scientific explanation of a chip pan fire + water
  1258. esimating delta S and delta H frim temp and Kb
  1259. calculation work required from change in pH
  1260. gas binary system vinyl chloride - water
  1261. Difficult AP Chemistry Question (Titration + Calculating Moles)
  1262. Suggestions for an equilibrium demonstration
  1263. Mg, THF
  1264. need help for assignment
  1265. Chemistry problems (help please)
  1266. What is the chemical name for:
  1267. Aerospace Engineeering Experiments
  1268. Synthesis question! Hurray!
  1269. Ranking of the properties of these things?
  1270. I dont get it..help!
  1271. Acid&Base question.
  1272. Double replacement reaction question
  1273. Electrochemistry question!
  1274. need help for IIT-JAM
  1275. Does the volume of a soda have an effect on the pressure that comes after shaking it?
  1276. Compound Formulas
  1277. hi can someone please help me with couple of my lab questions .
  1278. what are the most number of consecutive double bonds carbon can have
  1279. feso4 is not a primary standard??
  1280. Heat of solution
  1281. Freezing point depression error
  1282. Hexagonal Closest Packed Unit Cell Height
  1283. Which has the larger radius?
  1284. Why mercury is liquid at room temperture?
  1285. omg Chem Titration help fast!!!!
  1286. Arrhenius Acid Definition
  1287. Acid dissociation constant
  1288. enquiry
  1289. Enquiry
  1290. Word and skeletal equations
  1291. Removing H_3O^+ ions from aq. solution!
  1292. Gas Law questions
  1293. Balancing Equations
  1294. Multiple proportions incorrect?
  1295. IUPAC name of a branched chain hydrocarbon
  1296. Carbon + Hydrogen
  1297. Why can sulphur lose 6 electrons while magnesium can't gain 6?
  1298. Astronomy Help with Spectrography
  1299. Isotope exchange
  1300. Electrochemisty/Redox Reactions Help Needed
  1301. Organic Compound's Mass from Vapor Pressure
  1302. Genetics Problem Question
  1303. pH question, I really don't get this!
  1304. dissolving weak acids
  1305. Why does copper wire work as a salt bridge in a voltaic cell?
  1306. Need Help with a Gen. Chem. Problem
  1307. Organic Mixture's Boiling Point
  1308. Tricky little bit of astro!
  1309. Calorimetry Problem
  1310. pH of a buffer solution
  1311. Predict pH of KBr solution (aq)
  1312. half equation problems
  1313. AIDS info
  1314. Molecular Orbital Theory
  1315. Half Life for a second order reaction
  1316. Protein synthesized (Chem) Question PLZ HELP
  1317. Chemistry Questions
  1318. Enthalpy change of reaction.
  1319. Chemistry - energy and photons, Lewis structures
  1320. calorimetry question
  1321. iso electronic question
  1322. need help :(
  1323. acids, bases and pH
  1324. Florine with water and aqueous Fe2+
  1325. Nuclear Chem.
  1326. Test tomorrow need help
  1327. Bathymetry, Sediments, and Plate Tectonics assignment
  1328. Few Biologoy Questions
  1329. Earth Science Quesetion
  1330. genetics question!
  1331. pH of a mixed solution: is this right?
  1332. Organic Chemistry
  1333. Questions on Ideal gas
  1334. Biolgy Final Exam help
  1335. Chemistry Help
  1336. Volume - Volume Calculations
  1337. Lewis Dot Diagrams
  1338. Biology (translation) extremely confused, final is tomorrow
  1339. Chemistry Acid Base HELP PLEASE
  1340. Stability Order
  1341. Gr. 11. Titration problem (check if my answer is right)
  1342. Help please.
  1343. Urgent! Help!
  1344. Liquid to deaden pain?
  1345. Absolute Zero
  1346. Chemistry Electronic Configuration
  1347. Is this right?
  1348. Why is that electron moving?
  1349. Can someone help me w/ this??
  1350. Hydroxide ion
  1351. biology question
  1352. Lewis Structures: Shapes and Hybridization & Molecular Orbital Diagram
  1353. a few AP CHEM exam questions
  1354. coursework help: the affect on a plant on the rate of photosynthesis
  1355. Volume of reactant?
  1356. Radius of an atom
  1357. Equilibrium Help!
  1358. Chemistry (polar or not)
  1359. Questions about Geology
  1360. Heat Transfer
  1361. hmm 1 question please ^.^
  1362. Fock operator for closed shell system
  1363. Likely Formulas for Substances
  1364. Complete the balanced reaction if it will occur.
  1365. Why not crushed by air?
  1366. Dobson units?
  1367. Chemistry regarding moles!
  1368. Colligative Properties
  1369. Difference..?
  1370. Molarity
  1371. Electrochemistry
  1372. Hekp with szabo book
  1373. Thermochemistry please help!!!!!!!!!!!!!!!!!!
  1374. how can we define the chemical property?
  1375. Chemical Reaction of Baking Soda during electrolysis
  1376. Hypertonic/Hypotonic
  1377. Conductivity
  1378. Finding rate of oxygen consumption
  1379. Molality
  1380. Reaction Order Question
  1381. Rearrangement Reaction
  1382. Electroplating of Cu and Zn
  1383. Half-life of tritium
  1384. Question on Lewis structures
  1385. Using molarity in stoichiometry problems
  1386. BIO Experiment involvin paramecia, c14, alcohol - Need some info
  1387. Need help with isotopes: Chemistry!
  1388. CAtaclysmic evolution! project ..help!!
  1389. finding the concentration of a gas (thermodynamics)
  1390. I Need Help Noww!!!
  1391. Sr. Project (K5-5th Grade) Science Website
  1392. QUICK EASY QUESTION!!?(brains not working!!)
  1393. Chemistry Solubility Question
  1394. equilibrium issues
  1395. chemical reaction
  1396. Limited Reactants Help
  1397. Rate Laws
  1398. need help finding andiagram of the internal camel
  1399. Silver Nitrate/Copper Reaction
  1400. partial pressure of SO2
  1401. mixing solutions - wrong answer?
  1402. using gas law to find moles of SO3 formed...
  1403. Recrystalization Lab
  1404. net ionic equations
  1405. Test me on organic chemistry
  1406. Electrochemistry
  1407. enthalpy and heat change
  1408. how to predict products in chemical reactions
  1409. Back titrations?
  1410. A few easy Chemistry Questions
  1411. scientific method help
  1412. quick easy bio ?
  1413. What reaction in a titration?
  1414. Back titration with Iodine
  1415. Determining correct pKas in organic chemistry
  1416. calculating enthalpy change
  1417. Simple thermochemical equation
  1418. radial wave function
  1419. How do they react?
  1420. Stereochemistry
  1421. quantum mechanics - probability of finding an electron
  1422. dative bond confusion (or coordinate bond)
  1423. Density of air
  1424. Empirical Formula
  1425. Stochiometry Question
  1426. Ring expansions:when do thy happen
  1427. Effect of pH on beetroot cell membrane permeability
  1428. Stoichiometry
  1429. Stoichiometry
  1430. Hybridization Question
  1431. Thermo Question - Fridge cycles
  1432. Net ionic equation
  1433. Effect of Carbon Content in Steel
  1434. chemistry molecular shapes prob.
  1435. percent dissociation
  1436. Freezing Point Depression
  1437. Find mass from mole frac and solution mass
  1438. Possible source of error in determining gas constant
  1439. Chemical Reactions - Redox and Acid/Base
  1440. how to name structural features
  1441. i need help on this lab question
  1442. density and freezing point
  1443. Econ Question - Inferior Goods
  1444. tricky equilibrium constant question
  1445. need help
  1446. Boiling Point
  1447. Solve for Demand
  1448. Molar Conversions
  1449. Where did oxygen come from?
  1450. Reaction involving copper (II) sulfate pentahydrate
  1451. Biomechanics Question
  1452. Chemistry behind the following tests
  1453. Compression of gasses
  1454. Ideal gas law problem
  1455. Combustion reactions
  1456. redox equations!
  1457. differences between natural element and built element?
  1458. Enzyme Question
  1459. Life Based On Enzymes Question?
  1460. Mendelian crossings problems
  1461. Electron Affinity/Ionization Energy
  1462. Calculation of dissolved total inorganic carbon
  1463. Biology Homework Forum
  1464. Chemical equilibrium
  1465. Mixture Component Problem
  1466. per mol of what?
  1467. Chemistry: Activation Energy (Arrhenius equation)
  1468. Is there any way I can differentiate electrical conductivity?
  1469. Redox Reaction
  1470. Electrochemistry and Half Reactions
  1471. Double Salts
  1472. Phase Change Prob
  1473. derive a rate law from a mechanism (rates of reactions)
  1474. Reaction Rate Question
  1475. Equilibrium Concentration
  1476. equilirbium question
  1477. Advance Genetic Problem (Plasmid:- pBluescript II KS/SK (+)..) help please
  1478. Sign of electrode?
  1479. Billionaire who is richer
  1480. heat of formation of nh4cl
  1481. i have my acids and bases test tomorrow, and i need help with a few types of problems
  1482. Air Flow
  1483. chemistry questions
  1484. Predict the reaction
  1485. Quick Easy Question, takes 5 seconds
  1486. Gas Laws and Pressure
  1487. Copper(II)Sulphate
  1488. biology problem (sorta physics like actually)
  1489. Positive Entropy
  1490. Moles of Iron and Copper Lab
  1491. chemistry problem, calculate percent ionization
  1492. Crystals of Nickel?
  1493. chem question plz help
  1494. Help with Biology Question!
  1495. Physical Chemistry problem,please help!
  1496. White/Green/Blue Vitriol
  1497. in chemistry }}}
  1498. Chemistry Indicators Problem
  1499. Organic compound
  1500. Quick Organic Chem Nomenclature Question
  1501. Chemistry Help - Urgent
  1502. Calculation of heat of hydration
  1503. Quantatative Analysis of LiCl and LiBr Mixture
  1504. i need some serious help here soon...Astronomy Binary stars
  1505. pH of solution
  1506. Biology - examples of enzyme Inhibitors
  1507. Variational theory
  1508. CHemistry...
  1509. ground state energy
  1510. Computational chemistry
  1511. What is a "vapor bulb thermometer"?
  1512. Questions
  1513. Activation Energy
  1514. Stoichiometry
  1515. Partial Pressure from decomposition
  1516. Helpppp!! Pleaseee
  1517. Quick Question About Keq
  1518. Acid/Base Chemistry
  1519. Helpppp!!!!
  1520. Determine symmetry group
  1521. I am Needing help with Moles
  1522. ΔH for Gas Phase Reaction
  1523. Calculating Empirical Formulae
  1524. determining lewis acids
  1525. General Chemistry Pressure and Rate laws
  1526. hydrostatic pressure
  1527. Exothermic / Endothermic
  1528. Chemical Equilibrium Stresses
  1529. Buffer Solutions
  1530. Oxides
  1531. Finding density
  1532. Chemistry - Quick Check, Please
  1533. Corrosion Of Iron - Differential Aeration Principle
  1534. need answer quick please
  1535. I have a Science Question for my HOMEWOrK! Please help o:)
  1536. Question Regarding Oxides
  1537. Chem 2: # of pi bonds in a molecule
  1538. chem question, homework due tomorrow
  1539. Thermodynamic potential question,help!
  1540. need serious help with these enthalpy of neutralisation calculations
  1541. Qualitative tests on aluminium - Help Needed!
  1542. Inorganic Qualitative tests on aluminium
  1543. Biomechanics - Momentum/Collisions
  1544. Why HF (hydrogen fluoride) is not soluble in water?
  1545. Generating dipole vector
  1546. stiochemistry practice problems! help
  1547. Chemistry - Gas Laws
  1548. Gas Laws and Stoichiometry
  1549. Co2 and Octane problem
  1550. Octet Rule
  1551. An organic synthesis problem
  1552. Homologous pairs
  1553. Drano!!!
  1554. sports science
  1555. i need some freakin help with this half-life problem
  1556. i cant figure out this acid base problem
  1557. Le chatelier's principle..HELP!!!
  1558. another le chatelier qs..need to make sure
  1559. are all exothermic reactions chemical changes?
  1560. why is Teflon oliophobic?
  1561. [ask] How to calculate the initial rates of the reaction 2NO + Cl2 => 2NOCl?
  1562. Analytical Chemistry involving buffer
  1563. Acid/Base question
  1564. need to identify mysterious element
  1565. finding emprical formula of compound CHON
  1566. Creating a Redox Table
  1567. Ammonium help
  1568. Redox Reactions
  1569. Calculating amount of precipitate that will form
  1570. Astronomy spectroscopic binary
  1571. a chemistry problem
  1572. a chemistry problem i need serious help
  1573. In the high altitude of Denver, the winter is cold. Explain why NO2 is formed in Den
  1574. the high altitude of Denver, the winter is cold. Explain why NO2 is formed in Denver
  1575. Solubility combined with Buffer solutions... ugh
  1576. Activation energy of bromate/bromide reaction in acidic solution
  1577. calculating moles, ratio, empirical formula
  1578. Rusting Of Iron
  1579. Making a Buffer Solution
  1580. Which of the following solutions result in a buffer ?
  1581. Buffer Question
  1582. molecular biology techniques
  1583. Titriation Calculation for Weak Acid, Strong Base
  1584. Nuclear Equation, not sure it its right...
  1585. Organic reaction
  1586. Bond Length
  1587. Critical Temperature?
  1588. Reactivity of Ketones
  1589. If you know the answer of these 5 Questios , please help me
  1590. titrating weak acid buffer with strong acid after the base is used up
  1591. Free energy
  1592. pH of buffer solution
  1593. Chem 102 Lab Question:
  1594. Redox reaction equation
  1595. Extended Essay advice
  1596. Weak base/ Strong acid pH
  1597. Balanceing equations PLEASE HELP!!
  1598. Reaction mechanism
  1599. Energy
  1600. Freezing a gallon of water
  1601. thermodynamics clausius clapeyon
  1602. Sulfuric acid and gold
  1603. Material Energy Balance / Thermodynamics Question
  1604. Significant Figures.
  1605. people who did Liver research
  1606. TDS ratio specific heat help
  1607. Quantum Numbers. Help really needed!
  1608. Enthalpy
  1609. Question...
  1610. Chemistry-Apirin Lab, question about phenyl salicylate
  1611. Molar Heat of Solution
  1612. Acetylene Combustion equation
  1613. Restriction enzyme math question
  1614. resonance structures
  1615. Physical and Chemical Changes
  1616. several questions about stoichiometry
  1617. Lewis Dot diagrams, need help.
  1618. Which are polar or nonpolar?
  1619. [Chemistry] How do you find the new concentration?
  1620. Protein used for energy
  1621. SiC producing question
  1622. Electricity - Half wave rectifier
  1623. Acid Base Titrations..
  1624. Half life
  1625. pKa of Phenol
  1626. What's the right answer?
  1627. Poisson_boltzmann equation
  1628. Solubility of KNO3
  1629. dehydrating cyclohexanol
  1630. Creating a Buffer
  1631. Nitric acid equation!!
  1632. pKa of phenol lab
  1633. half life (very very simple question)
  1634. Question about phenol and phenolate
  1635. calculate the formula weight for values of X
  1636. Equilibrium constant from thermodynamic values
  1637. - Chemical Equilibrium [Help] -
  1638. Questions about Diels Alder reaction
  1639. Higher Chemical Concentration = Higher Temperature of Precipitation. Why?
  1640. Question about rusting on iron nails.
  1641. Urgent! zincate formation!
  1642. HCl + Mg
  1643. Organic Chemistry Help (Sodium Borohydride Reduction)
  1644. Enthalpy of Formation
  1645. Using oxalic acid as a primary standard
  1646. Titration problem
  1647. stoichiometry
  1648. pH of buffer solution
  1649. Molar Enthalpy Change
  1650. Colligative Properties and such
  1651. Thermo question - final mass/entropy generation!
  1652. pH of solution
  1653. phosphate buffer
  1654. coursework help
  1655. Crystal Point Groups
  1656. critical radius
  1657. Gibb's free energy (very simple one)
  1658. Higher Chemical Concentration = Higher Temperature of Precipitation. Why?
  1659. Solubility with Common Ion
  1660. Question about E2 mechanism.
  1661. aldehyde in aqueous base
  1662. Standard Reduction Potentials of 1/2 Cells
  1663. Osteoporosis Effects Short Term vs Long
  1664. Electrochemistry question
  1665. [Chemistry] Membrane Potential
  1666. Drugs and Medecine - where can I study from?
  1667. Chemistry - Dissolving Precipitates
  1668. Simple pH problem
  1669. Hexagonal Close Packing (Why do I get c/a = 3^1/2 ??)
  1670. Enthalpy Change
  1671. [Chemistry] Another electrochemistry question
  1672. A simple unit conversion problem that I don't get.
  1673. Lewis Structure of These Molecules?
  1674. Calculation Molar of HCL 37%
  1675. Foods that prevent osteoporosis?
  1676. organic chemistry problem
  1677. Partial Pressure
  1678. describe the optimum temperature and pressure conditions for these reactions
  1679. describe the optimum temperature and pressure conditions for these reactions
  1680. Acid/Base Equilibria (hard, i think).
  1681. gas laws
  1682. What's a good catalyst for the reaction...
  1683. pH Citric Acid
  1684. bonds
  1685. Chemistry questions
  1686. Chemistry equilibrium question
  1687. melting point
  1688. Distribution Coefficient! Fun for all ages!
  1689. Chem 2: Molecular Equilibria
  1690. A buffer problem, I need serious help!!!!!!
  1691. a chemistry problem about blood
  1692. car engines
  1693. Titration Question...please help.
  1694. is this problem right
  1695. Crystal Field Model
  1696. AP Microeconomics question
  1697. [Help] Simple Genetics Questions
  1698. cubic equation for weak acid hydronium
  1699. A few basic questions
  1700. Organic Chemistry
  1701. Finding Literature Heat Capacity Values
  1702. Rate of reaction
  1703. Rate of Reaction
  1704. Can someone plz help me...
  1705. melting points
  1706. Calculating Ksp of PbCl2
  1707. q w delta T,U and H calculation
  1708. 1 Question???
  1709. Chemistry equations
  1710. Hess Law: Molar Enthalpy Change for Decomposition
  1711. Temperature of Equilibrium
  1712. Chemistry Help?
  1713. inertia and ke
  1714. Need help from a REALLY REALLY GOOD chemist
  1715. Initial reactioin rates?
  1716. pH of H3PO4 mixed with NaOH
  1717. Chemical Formula Hydrate Lab
  1718. chemistry equilibrium
  1719. Bragg angles
  1720. Question about chem?
  1721. How to determine if the mixing of two solution would result in buffer solution?
  1722. Mass balance/Charge balance
  1723. acetic acid + koh
  1724. Calcutating the volume of HNO3
  1725. Choosing an indicator?
  1726. ph of buffer solution
  1727. ph of (buffer + HCl)
  1728. Help me!!
  1729. calculating molecular mass of oxalic acid (diprotic acid) using only given #s?
  1730. Very easy atomic weight problem
  1731. [Chemistry] Calculation of Pt potential
  1732. help
  1733. Need a little push in the right direction...
  1734. Methanol process
  1735. Ideas for a Quick Physical Chemistry project...
  1736. Nautralization Reactions
  1737. Organic Chem - Synthesis of alcohols
  1738. Limiting reagent???
  1739. Help with Stat Mech HW
  1740. Significant digits in intermediate answers
  1741. ElectroChemistry
  1742. Normalizing molecular speed probabiliy distribution
  1743. Water Solubility
  1744. Physics!!!!
  1745. Help ASAP please! finding pH and pKb
  1746. Chemistry pH problem
  1747. Can someone help me to find the general trend or functional group name for the follow
  1748. is heat required for these processes to occur?
  1749. diversity questions
  1750. Thawing of meat in fur
  1751. hard emperical formula question for assignment
  1752. DNA family tree: who is the grandmother, mother, and daughter?
  1753. High School Chemistry HW
  1754. Nuclear Chemistry
  1755. Chemistry - Redox Question
  1756. Molarity
  1757. help Hess’s law
  1758. Ph and weakbase
  1759. Chemistry Final
  1760. Very Simple Question.
  1761. Frontier Orbital Theory
  1762. Determining conc of H2O2 by titration
  1763. Matching
  1764. Redox Balancing
  1765. Thermo Problem, desperate
  1766. biology - hardy weinberg theory
  1767. Calculating with Half Lives
  1768. Chemistry color of complex ions
  1769. Compressed 5% CO2 in tank
  1770. (very) nonstandard reduction potential
  1771. Why do we regain energy quickly after a workout?
  1772. Electron Affinity
  1773. Isopropyl Alcohol Electron Dot Diagram
  1774. Spin angular momentum?
  1775. I need help in assigning R/S stereochemistyr
  1776. Help with a chemistry lab-I suck at it.
  1777. Lattice Energy and the Born Haber Cycle
  1778. Lattice Energy and the Born Haber Cycle
  1779. net ionic equations helppppp.
  1780. Nerst Equation
  1781. Finding Hydrolysis Constant
  1782. chemistry help needed!
  1783. Oxidation Reduction Reactions
  1784. Biology: Solutions equilibrium
  1785. building a Electrolysis for water
  1786. how do satellites stay i space
  1787. CGI confusion
  1788. Help with lab!
  1789. Help with chem lab
  1790. p and q frequinces
  1791. Quantitative Biuret's test for protien
  1792. Chem 2, Cell diagrams for oxidation/reduction reactions
  1793. acids and bases
  1794. hygrogen compounds and states of matter
  1795. Calculating Ka
  1796. Geometric / Optical Isomers
  1797. precipitation!!
  1798. [Co(H2O)6]2+ + 4NH4SCN
  1799. population frequency
  1800. Is it possible to find uncertainty for water hardness?
  1801. Chemistry - Homework Help
  1802. Determining Interparticle Force
  1803. Chemistry - Homework Help II
  1804. A small high school problem
  1805. Chemistry Extra Credit Prob.
  1806. Chemistry Lab
  1807. If you could help come then ^_^
  1808. RICE Tables
  1809. helpppp.again.
  1810. equilibrium constant
  1811. Preperation of bromine gas
  1812. Questions about electrochem
  1813. Calculating the theoretical net charge
  1814. Genetics/ Probability Problems
  1815. gas laws question
  1816. AP chemistry 2006 Form A Questions
  1817. Energy
  1818. Chemistry Help
  1819. [Chemistry Lab] Isolation of Aldehyde and Carboxylic Acid
  1820. Mollier diagram and reversible/irreversible process...?
  1821. [Chemistry] Grignard Reaction
  1822. energy of electrons
  1823. Biology: Simple Transpiration
  1824. Complex species doubt
  1825. Quick help plzzzz!!! How much acid do I need to add?
  1826. Cannizzaro Reaction
  1827. Coulomb's Law
  1828. pH question (volume calculation)
  1829. Sophmore Highschool Chemistry
  1830. 10th grade chemistry
  1831. Balancing equations
  1832. Study guide question
  1833. Composite In Biomedical Field
  1834. autosomal and X-linked genetics problem!
  1835. urinary bladder
  1836. limiting and excess reagents
  1837. AP Chem 2007 Free Response
  1838. Grade 9 Geo Proj! Stem Cell Help!
  1839. Rate law for the reaction
  1840. Calculations
  1841. Calculations 1
  1842. Calculations 2
  1843. calculation...could somebody help me please?
  1844. Equilibrium (water and ethanol)
  1845. stoichiometry hlp
  1846. stoichiometry hlp
  1847. autotrophs
  1848. Equilibrium equations
  1849. Kinetics
  1850. Acid/Base System
  1851. Question about Jones Reagent
  1852. General organic reaction question
  1853. Simple Chemistry: Nitric Acid
  1854. equilibrium
  1855. Permaganate and Alkenes
  1856. Enthalpy
  1857. titration with Carbonates acting as bases
  1858. calculating population growth
  1859. Determine Rate Law For Chem Reaction
  1860. determine the heat of reaction
  1861. Easy calculation
  1862. hi! help me out with hydroxides
  1863. Dont know how to do this
  1864. Chemistry - Quick question about standard reductions of half-cells
  1865. simple biology :decomposers
  1866. Specific Heat: Chemistry
  1867. Exam Woes
  1868. vetro paste chemical formula
  1869. Guttation
  1870. Acetylation- acetic acid or acetic anhydride
  1871. difference between the bleaching action of SO2 and CL2
  1872. Bromination and Nitration
  1873. growing reactions
  1874. How do I answer these chemistry hydrate questions?
  1875. Nitrogen
  1876. Question #1
  1877. 3C2H2 + Cu2Cl2 and more
  1878. Acetic/Ethanoic Acid Foam
  1879. quick q - benzoic acid and % yeild
  1880. Questions..
  1881. Gibbs Free Energy
  1882. Simple Stioch
  1883. acidity/basicity of amino acids
  1884. Iodine Solution
  1885. Evolution-Natural selection types
  1886. solubility for hydrated calcium sulfate in HCl
  1887. Balancing acidic and basic equations
  1888. Hey, I'm new here and need some help...
  1889. Biology
  1890. Heating Calcium Chloride Dihydrate
  1891. HELP PLEASE!! Molar mass of unknown gas
  1892. Molar Mass of unknown gas
  1893. plz check my work... urgent plzzz
  1894. chemistry HELP
  1895. transitional elements
  1896. Lewis acid help
  1897. reversible?
  1898. Chemistry Homework
  1899. What is Eθ?
  1900. Electron Configuration
  1901. Predict the mechanism
  1902. predict the compound
  1903. Heat of Reaction Experiment, High school level
  1904. E.coli with minimal media problem, HELP!
  1905. Group 2 hydroxides question
  1906. monochloride compounds of the halogens!
  1907. explaining Gibbs Free Energy
  1908. Methods of measuring concentrations of lead
  1909. Aromatic Compounds and Acidity
  1910. Solubility
  1911. an electrochemistry question
  1912. Proton NMR - Spin-Spin Splitting and Multiplicity
  1913. still that electrochemistry question
  1914. Fission - Nuclear Reaction
  1915. Fission - Nuclear Reaction
  1916. Chemistry Correspondace help!
  1917. Chemistry Help
  1918. Structural Formulas for all the (C5H11OH) alcohols
  1919. Equilibrium equations and coefficients
  1920. EDTA Titration problem
  1921. Integral centers in Hartree Fock
  1922. peptide chains with ER sequences
  1923. History of DNA cloning
  1924. Hard water problem. How much CaCO3?
  1925. Three Acid-Base Theories
  1926. Acid or Base and Chemistry of Taste
  1927. Redox and Half Reactions
  1928. Roc Identification
  1929. understanding a dendrogram (no cursework)
  1930. Solid State Chemistry : please illustrate counting of octahedral, tetrahedral voids..
  1931. General Chemistry - Solutions & Intermolecular Forces (HW Help)
  1932. Solubility in Sulfuric Acid
  1933. acid base strength rationale
  1934. Gas Solubility
  1935. Chemistry: Henry's law of partial pressure of gas.
  1936. Theoretical Yield in Multi-Step Synthesis
  1937. Which has higher polarity, sec-butyl chloride or tert-butyl chloride?
  1938. Lowering of activation barrier
  1939. Polarity of Aromatic Compounds
  1940. half- rxns
  1941. Help Please...
  1942. Chemistry Help Please
  1943. Chemical Formula Addition ?
  1944. Friedel-Crafts Alkylation Question
  1945. Jones Oxidation
  1946. Chem II - Solubility & Boiling Pts.
  1947. CO oxidation
  1948. Aldehyde in Sulfuric Acid
  1949. Diels-Alder - faster or slower question.
  1950. Naming compounds
  1951. Naming and writing formulas of compounds...
  1952. Solubility of Amines
  1953. ICE table, esterification problem (just need work checked)
  1954. Carbon versus silicon
  1955. Acids And Bases
  1956. vdw distances
  1957. Basic qualitative acid/base question
  1958. Enthalpy of Formation vs. Bond Enthalpy
  1959. Functional groups
  1960. Grignard Synthesis - need help naming product
  1961. ur opinion on organic chem
  1962. Proton affinity via. Born Haber cycle
  1963. Bonding of HCL and HF
  1964. Berthelot Equation
  1965. Electrophilic Substitution
  1966. Size of imaginary frequency
  1967. Question regarding hydrophobic forces
  1968. dipole and fractional charge
  1969. equillibrium concentrations
  1970. Equilibrium, Solubility and Precipitates
  1971. Gas Stoichiometry
  1972. vapour-liquid system
  1973. change heat to cold?
  1974. Huckel approximation--pi-energy
  1975. IUPAC Nomenclature
  1976. Number of possible covalent bonds
  1977. Non-Adiabatic versus excited state
  1978. metallic lustre
  1979. Heat of Combustion help!
  1980. ILC chemistry course grade 12......
  1981. memorize alkanes for organic?
  1982. Mass spectrum-need 3 peak designations
  1983. Experiment Volumetric analysis - Acid base
  1984. Spectra of small molecule and computed spectra
  1985. Fractional Distillation and Normal distillation
  1986. Digestive Juice
  1987. Chemical Equilibrium
  1988. Chemical Energetics
  1989. Gas volume question
  1990. what material has the following composite?
  1991. Chemical equation
  1992. rusting assinment
  1993. Alcohol Isomer
  1994. err, 'kid' chemistry question. HELP!
  1995. Gen Chemistry Help?
  1996. Double checking organic chem mechanisms
  1997. Food slows down the absorption of alchohol??
  1998. Redox equations
  1999. Chemistry help
  2000. Spin quantum number
  2001. Iron(ii) and Iron (iii) Seperation
  2002. identifying the anode/cathode
  2003. Carbon dioxide output??
  2004. Can someone check my work? Neutralization reaction.
  2005. chemistry help...
  2006. Can anyone get me on the right track???
  2007. Can someone tell me why this method is wrong even though it seems logical?
  2008. Iupac
  2009. Can someone check this for me please??
  2010. highschool chemistry redox
  2011. Thermal methods of analysis
  2012. Preparation of benzylamine
  2013. Chemistry Organic Molecule Drawing Program
  2014. Regarding Equilibrium Constant
  2015. Piston Problem
  2016. Biology/Chemistry: pH Level and Ionizable Groups
  2017. Chemistry Lab Report Sample
  2018. Electrophilic/Nucleophilic aromatic substitutions
  2019. Help me
  2020. DNA/Codon probability question
  2021. stociometry problem
  2022. Spectroscopy
  2023. Miscellaneous Chemistry Problems from 2004 Australian NQE
  2024. Help! Why can't we see ultra-violet light??
  2025. standard enthaply of reaction
  2026. Help! Pipe sounds....
  2027. Why do pipes of different size and length make different sounds?
  2028. Can someone please explain simply what happens when you make ripples in a ripple tank
  2029. Mendelian Genetics questions:
  2030. Phenol
  2031. concentration/dilution problem
  2032. Concentration ion problem
  2033. degree of unsaturation
  2034. Chemistry- Forming Compounds
  2035. titration problem
  2036. spectrophotometry problem
  2037. successive dilution problems
  2038. state vs path function
  2039. finding the iodide ion concentration
  2040. another successive dilution problem
  2041. Chemistry Help
  2042. molar mass problem
  2043. AP Chem; Calculating energy released
  2044. what equation to use
  2045. thermodynamics problem
  2046. Chemistry: Converting density to molar mass given other values.
  2047. Gram negative bacteria and blood agar hemolysis
  2048. Thermo
  2049. Chemistry Pre-lab question about density...
  2050. Permanganate Ion and Glucose
  2051. Prove that (K)^(-1) = (C degree)^(-1)
  2052. Formulas and Reactions
  2053. [SOLVED] PCHEM/Partial Pressures Question
  2054. Biology Question
  2055. Biochemistry
  2056. Biogenesis?
  2057. Why Did The Dinosaurs Die Out?
  2058. Can I get my intro Bio problems checked?
  2059. Bioelectricity
  2060. Solution Stoichiometry
  2061. IUPAC nomenclature assistance request
  2062. Help with general astronomy
  2063. 3 Questions
  2064. Calculating Moles of O Atoms?
  2065. Human Biology Help-Apologies for Vagueness
  2066. Big Question!!!
  2067. What's it called? The tip of the water? Pic included
  2068. Cell Biology
  2069. Dilution Problem
  2070. Dilution problem
  2071. Chemistry - equation problem
  2072. Chem problem need help....
  2073. Chem Problem
  2074. Chem Problem
  2075. Chem Need Help
  2076. Need help with chem problem...
  2077. Kepler's third law help.
  2078. Experiment: Heat of Reaction... help!
  2079. Chem Stoich problem
  2080. Net Ionic Equation
  2081. Net Ionic Equation: Acid/Base Rxn
  2082. Calculate volume of object that is submerged
  2083. [SOLVED] recrystallization
  2084. Finding z @ STP
  2085. Isothermal and reversible expansion work problem (Physical Chem)
  2086. Precipitate
  2087. Absorbance and Concentration Question
  2088. Chemistry Exam: Least do I know!
  2089. [SOLVED] Punnet Squares
  2090. Organic Chemistry - Nomenclature Structures
  2091. can anyone help me with ny of these 4 genetics questions?
  2092. Naming benzene compounds
  2093. [SOLVED] Oxidation of secondary alcohols
  2094. Ions in chemical cells
  2095. Tap vs Bottled Water; Guidance Appreciated
  2096. [SOLVED] Lewis Reaction Questions (Organic Chemistry)
  2097. Balancing a Redox Reaction.. urgent
  2098. Bonding
  2099. Physical Chem help
  2100. lightin light bulb
  2101. standard entropy of formation
  2102. Stoichiometry and Yields
  2103. Insane AP Chem question, please help me
  2104. Re: Microbiology Hwk Problem, Calculating generation time
  2105. Materials/Chemistry Question - Weight % fractions
  2106. Chemistry Materials Question - Weight % Fraction
  2107. Isothermal titration calorimetry
  2108. Intro To Chemistry (Need Help)
  2109. Ligand-protein binding
  2110. [SOLVED] Finding percentage of carbonate in mixed sample titration
  2111. Density Problem
  2112. General Chemistry questions and kinetics
  2113. [SOLVED] Chemistry Problem
  2114. [SOLVED] Covalent bonding?
  2115. Chemistry Problem II
  2116. Chemistry Problem III
  2117. [Chem] Determining Masses from Concentration
  2118. [SOLVED] paper chromatography
  2119. Chemistry homework
  2120. [SOLVED] Oxidation #s For Zn(NO3)2 ???
  2121. Atomic mass number question.
  2122. Heat Released In Enthalpy
  2123. [SOLVED] Isotopes
  2124. HUMANITIES homework
  2125. [SOLVED] Problem on Gases and Gas Pressures
  2126. [SOLVED] Gases Problem
  2127. [SOLVED] Cross-linking polymers
  2128. Free radical polymerization
  2129. Another chem problem
  2130. Binary Mixture
  2131. Acid Base Titration
  2132. Help with Chemistry
  2133. Thermodynamics
  2134. Chemistry Gas problem
  2135. Ionic Strength....help
  2136. Neuroscience -- Action Potentials, Voltage Clamps
  2137. Using reagents to identify unknown substances
  2138. [SOLVED] Question
  2139. Forming precipitate in buffer solution
  2140. standard sample size
  2141. Thermodynamics - Piston Cylinder
  2142. Couple of problems left over from Chem homework I didn't get.
  2143. Stoichiometry
  2144. Solubility
  2145. Bomb calorimetry
  2146. Mass of a solution
  2147. Chemistry: Help with balancing
  2148. AP Chem. Bomb Calorimetry
  2149. Covalent Bonding
  2150. Chemistry Help - Using the Gas Laws
  2151. Ion Chromatography
  2152. Chemistry - Ideal Gas Law
  2153. Biochemistry Help :)
  2154. Pka and Solubility problems
  2155. Galvanized Steel Treatment
  2156. How to Calc molar concentration from Ksp
  2157. Chemistry - Gas Law Stiochiometry
  2158. Decomposition Equation Help...
  2159. Graphing the 1st Derivative on excel?
  2160. Calculating grams of Precipitate
  2161. [SOLVED] Astronomy Question
  2162. HCl preparation
  2163. Dilution Question
  2164. Calvin cycle problem
  2165. Some Titration errors
  2166. Chem Question
  2167. Composition of a Mixture by Acid-Base Titration
  2168. net ionic eqaution
  2169. [SOLVED] Calculate molar masses in excel
  2170. Balancing Redox Rxn
  2171. [Chem] Balancing Redox Eqn Any Diff from Regular? ..
  2172. Ideal/Combined Gas Law equation
  2173. pH effects on membrane permeability
  2174. confused about particle growth
  2175. Partial pressure question
  2176. Molecules from concentration
  2177. Using Henderson-Hasselbach equation?
  2178. Bayer Process
  2179. a multiple choice question about sustainable development
  2180. resources
  2181. Stoichiometry of a RedOx Reaction
  2182. difference between fibrous proteins and globular proteins
  2183. X-ray Formulas
  2184. Titration
  2185. Idea for a molecular biology-based, laboratory research plan
  2186. Salts
  2187. [SOLVED] Linkage isomer in complexes
  2188. Resonance Structures
  2189. CHemistry H2O vapour question
  2190. finding the magnitude difference between two star
  2191. Thermodynamic question
  2192. Can someone double check my answers for theoretical densities?
  2193. How Does Fermentation Rates Change With Different Types of Yeasts? (Biology Q)
  2194. Solution Prepartion
  2195. Genetics Questions
  2196. Genetics Questions
  2197. Chi-Square Test Crosses
  2198. Linkage And Mapping Of Genes
  2199. C programming
  2200. Buffer problem or not??
  2201. Buffer problem or not??
  2202. Calculating wavelength of light
  2203. chemistry help
  2204. Molarity
  2205. Polarity
  2206. Particle growth
  2207. London Dispersion Force
  2208. Biochemistry--Double check my answers please
  2209. Diffusion/osmosis, mitosis, and cellular respiration
  2210. Solubility Problem~
  2211. another solubility problem
  2212. silly math problem on precipitation
  2213. Electron Designations
  2214. Diverse Ion Effect Question
  2215. Any Suggestions for AP Chemistry Extra Credit Project?
  2216. VSEPR Question
  2217. Diverse Ion effect and Activity coefficients problem
  2218. Genetic Problem.please Help!!
  2219. hello everyone,i'm havin trouble with this genetics problem.any ideas?
  2220. Concentration problem
  2221. Weak Acid, Strong Base Titration
  2222. Bromocresol Green as an Indicator
  2223. Effect of pH on Amylase..Need help
  2224. Effect of pH on enzyme activity- amylase
  2225. [Chem] Ions' States of Matter when not in solution
  2226. Genetics - independent assortment and linkage
  2227. [CHEM] Simple stoichiometry problem help
  2228. Introductory of Chemistry
  2229. Stereochemistry
  2230. Dalton's Law question.
  2231. Photosynthesis Help
  2232. pH of phosphori acid... HELP PLEASE
  2233. pH buffer/unbuffered soln... please help
  2234. Hydrates
  2235. Lone Pair(s) : How to find?
  2236. Genetics problem
  2237. Extraction efficiency problem PLease help....
  2238. Problem
  2239. Nomenclature Of Complex Ions
  2240. spring constant of molecule
  2241. Physical Chem, work of a non-ideal gas
  2242. Molar mass of a Volatile liquid.
  2243. Total Water Hardness
  2244. Balancing Redox Equation
  2245. how can we run without falling over on uneven ground
  2246. Electron Configurations in excited states
  2247. Ground State of electrons
  2248. English Homework
  2249. H3PO4 Stepwise Neutralization
  2250. titration indicator
  2251. Hydroxynaphthol blue??
  2252. question on Selective precipitation
  2253. Chemistry
  2254. Freezing Point Depression
  2255. 9 Solution Problem Lab
  2256. [SOLVED] Distinguishing Between CO2 and Ar
  2257. [SOLVED] Thermochemistry
  2258. Gas problem.
  2259. Chromatography - Net Charge
  2260. A tricky question
  2261. Help!!
  2262. solution concentration and ppm
  2263. [SOLVED] What am I doing wrong? Thermochemistry
  2264. No clue, Thermochemistry
  2265. Enthalpy of Combustion -- Alkanes
  2266. Chemistry Homework
  2267. Last thermchemistry question
  2268. Introductory of Chemistry
  2269. Chemistry- Selective Precipitation
  2270. Verify Thermochemistry answer (no calculations)
  2271. ionic bonds in amino acids
  2272. Astronomy - Latitude and Longitude problem
  2273. Titration
  2274. Astronomy - Light Force
  2275. What’s the experimental evidence that calcium has to be present during depolarisation
  2276. What is the pathway by which Ca2+ ions enter the presynaptic terminal? (i.e. what kin
  2277. assuming [Cl‑]o = 150 mM and [Cl‑]i = 8 mM.
  2278. how to match single channel behaviour to whole cell current what would you do
  2279. [SOLVED] Chemistry For engineers: thermodynamics
  2280. Chemistry - interpreting Fractional Distillaion.
  2281. [SOLVED] biology question about plants
  2282. Help for Chem Problem,
  2283. Need homework help (Astronomy)
  2284. EDTA titration lab help
  2285. Water molecule
  2286. Avogadro's Theory
  2287. Biology Help
  2288. Ice and Water
  2289. fuel
  2290. Chem. Half-Reactions
  2291. Cyclic voltammetry
  2292. Help finding a chemistry help website.
  2293. Rf Values
  2294. Effective magnetic moment
  2295. Entropy Changes
  2296. analytical chem
  2297. [SOLVED] Determination of Vitamin C
  2298. Distillation Lab Question!
  2299. Combustion Train Analysis
  2300. Rate of Reactions?
  2301. Electrolysis
  2302. help with using Excel
  2303. Formulas from question that BATE pH calculator gave me
  2304. Energy and efficiency
  2305. [SOLVED] BiOchem lab DNA electrophoresis
  2306. [SOLVED] Chem Lab Help!!
  2307. Cyclic Voltammetry
  2308. chem lab - titration
  2309. Mass Spectometry Problem
  2310. Partial Pressures of ethanal and water!!
  2311. Negative Current
  2312. need answer....plz help me
  2313. Absorption by plants
  2314. Product of spin functions
  2315. help needed
  2316. Isomers, how do you know how many to draw?
  2317. Delta G of Dilution
  2318. Energy Change Formation
  2319. Bond
  2320. Bond Angle for compount Clozapine
  2321. Quick paramgnetic question
  2322. 1997 Ap Chem Free Response #9 Help
  2323. [SOLVED] Ion concentration
  2324. Logic question
  2325. Nuclear chemistry: BY and FROM
  2326. Need Help With Weather Homework Asap!!!!
  2327. What should the pH of a .121M KI solution be (electrochem lab)?
  2328. Stereochemistry, PLZ HELP!!!
  2329. Chem Test Review Questions (multiple chice) Need help ASAP, please!
  2330. objection against redi's experiment
  2331. Plants, cell communication, digestion, and circulation
  2332. E Cell Values!
  2333. Calculating the triple point of benzene
  2334. Long Titration Problem
  2335. heat transfer
  2336. how do you make hydrogen fuel
  2337. Chromatography: Please help!!
  2338. Physical chemistry problem
  2339. A quick problem
  2340. Phosphate Determination
  2341. hydrate problem :(
  2342. Organic Chemistry, Paula Bruice
  2343. Chemistry - Ideal gas equation question
  2344. HELP please!!
  2345. Identifying Objects in the Solar System
  2346. need help with A-Chem
  2347. What is combustion?
  2348. What is the E cell value for the following equation?
  2349. Gas Diffusion?
  2350. [SOLVED] solving the ideal gas law for volume --> length
  2351. Imagination and It's Stages
  2352. Help on amount of oxygen [dissolved] at equilibrium in an unknown sample
  2353. equipartition theorem and motion
  2354. refractive indices
  2355. [SOLVED] Interference of Sound Waves
  2356. Flame atomic emission question
  2357. [SOLVED] Converting Mol
  2358. pH problem weak acid and weak base
  2359. Help!!!! Now!!!!
  2360. Spectroscopy questions
  2361. Super quick error propogation question
  2362. Graham's Law Question (With Gases)
  2363. Largest lattice energy
  2364. Need Help With Acetaldehyde-Tollen's Reagent Rxn
  2365. chemical reaction
  2366. non-standard cell potential problem
  2367. electrochem question
  2368. Membrane potential
  2369. Nernst Equation
  2370. Chemistry - Adding Strong Acid to Buffer
  2371. Why exactly is this exothermic
  2372. net ionic equation
  2373. Converting Ocular Unit Magnification
  2374. Question about Noise vs. Music
  2375. Salt water solution
  2376. [SOLVED] Chemical Reaction between water and chlorine
  2377. Bonding Angles
  2378. electrochem-finding K
  2379. Iodimetric Titrations
  2380. Choosing a solvent
  2381. Hydreogen Peroxide LAB
  2382. Potentiometry lab question
  2383. Evaluation of Strike and the 3 point problem....
  2384. orgo lab - pka values
  2385. will this experiment work?
  2386. Kinetic energy and heat
  2387. Selective Reduction
  2388. Help please.
  2389. confused with moles
  2390. Photosynthesis Question
  2391. [SOLVED] molecular orbital model
  2392. Which base is stronger?
  2393. [SOLVED] Activity series
  2394. Thermochemistry combustion problem
  2395. Triethylene glycol + Dichlorotriethylene glycol
  2396. Selective Oxidation
  2397. Diffusion, isn't this the formula I'm supposed to be using?
  2398. Maximum Useful Work from a Fuel Cell
  2399. Ionic Strength
  2400. Gravimetric factor
  2401. Orbital Symmetry Controlled Reactions
  2402. Relative Half-Cell Potentials
  2403. Hybridization On Organic Molecule Salitoxin
  2404. pH problem
  2405. [SOLVED] electron density
  2406. Please help with pedigree charts
  2407. Working on polystyrene & graphite composite, interesting effect(s)
  2408. Molar Ratios- Help Please! 8)
  2409. [SOLVED] 8. When 15 grams of H2O decomposes how many grams of O2 are formed?
  2410. Air problem
  2411. [SOLVED] What affect does altitude have on boiling point?
  2412. A few questions...I'm studying for a test.
  2413. [SOLVED] Nernst Equation Applied to Half-Reactions
  2414. [SOLVED] Determine the mass of sodium chloride produced when 2.5 moles of chlorine ga
  2415. Multiple Choice Anyone? 8)
  2416. What is the probability that their 1st child will be albino?
  2417. Huntington's Disease
  2418. General Biology question ?
  2419. Having difficulty with Ox-Redox
  2420. [SOLVED] Isomers
  2421. Coordination Chemistry and Complexes
  2422. Multi-step Organice problem!!!
  2423. what will be the new volume?
  2424. Mole problems
  2425. Anyone know the equation?
  2426. Help!
  2427. Am I doing these right?!?!
  2428. [SOLVED] Ambiguous bonding question
  2429. [SOLVED] Help Please!! :)
  2430. Alcohol Combustion
  2431. Just brushing up on chemistry
  2432. Oxidation of MnCl2
  2433. Bond Order
  2434. Glycolysis & Creb Cycle...Biochemistry
  2435. [SOLVED] Gas Law Problem
  2436. Dilution Chemistry Problems...i dont get it >.<
  2437. Help, writing things like Alpha Decay in Chemistry?
  2438. transformation of bacterial cell
  2439. Calculating Final Temp of a mixture
  2440. Radioactive Elements - HELP!
  2441. Titration
  2442. How to find Electrons in CN-
  2443. Urgent Calibration/Concentration Problem
  2444. Gravitons
  2445. Symetry:
  2446. Organ Bath Problem
  2447. Organic chemistry
  2448. Help with writing a chem equation
  2449. Ligand integrin dimerization
  2450. General Chemistry -- Chemical Equilibria
  2451. AP Biology Genetics Punnet Square
  2452. Silly chem question
  2453. thermodynamics constant volume and temp equilib questions
  2454. Valence electron of CN?
  2455. [SOLVED] Hess's Law and Thermochemical Equations
  2456. [SOLVED] examples of bonding
  2457. Chem Lab Help: Equilibrium Systems
  2458. chemical equatio n
  2459. [SOLVED] Bronsted Lowry Proton Theory
  2460. Sulphuric Acid Catalyzing Esters?
  2461. atp synthase and gibbs free energy
  2462. [SOLVED] % mass by Vol problem
  2463. [SOLVED] directional bonding
  2464. Electron Configuration
  2465. [SOLVED] Temperature and Rate Constant
  2466. [SOLVED] pH of solution
  2467. Drop in Concentration as reaction progresses
  2468. Initial Rates Method
  2469. [SOLVED] Mass to Volume Problem
  2470. QM/MM vs QM/MD
  2471. Decomposition of cooper II carbonate hydroxide hydrate.
  2472. Objective Chemistry (2 questions)
  2473. determination of enthalpy of solution (solubility/temp stuff)
  2474. stoichiometry help
  2475. Stoichiometry
  2476. Calculating Freezing and Boiling Points
  2477. Fluoride Ion selective electrode measurements
  2478. Lattice Energy
  2479. [SOLVED] Empirical Formula
  2480. [SOLVED] structures
  2481. alcoholos and nucleophilic subst.
  2482. [SOLVED] Pressure
  2483. Help with Propanal formulas
  2484. [SOLVED] Stoichiometry Solving for unknow
  2485. coupled reaction
  2486. [SOLVED] More help on Stoich
  2487. [SOLVED] Last Stoich I swear
  2488. Chemical Kinetics - Rate Laws and Mechanisms
  2489. [SOLVED] Solving for molar mass
  2490. acid/base equilibrium tutorials!
  2491. (Bio} Calculating Aphid Population
  2492. chemistry
  2493. Chromium Oxidation State
  2494. Finding the mass for a calorimetry problem
  2495. [SOLVED] Half Life Help
  2496. [SOLVED] Amount in mol of compound ions
  2497. Copunds/mixtures
  2498. Energy in mixtures
  2499. Phase of matter
  2500. mixtures/solutions
  2501. Planck's constant and speed
  2502. Could somone explain me this question?
  2503. Specific Heat and the body
  2504. Enzyme kinetics question
  2505. grignard synthesis
  2506. fajans rule??
  2507. The position of the equilibrium altered
  2508. Metabolic pathways problems
  2509. Protein Hormones and Cell Membrane interaction
  2510. structure of molecules
  2511. neeeed help
  2512. [SOLVED] What is the enthalpy of combustion of magnesium?
  2513. Help BIOLOGY
  2514. Please Help In Biology Please
  2515. [SOLVED] chemistry question.
  2516. molarity question
  2517. supersaturated question!
  2518. pore pressure
  2519. Help me please this is very important!
  2520. strong and weak electrolytes-need help plzz
  2521. Gas Laws
  2522. [SOLVED] Physical chemistry problem
  2523. Where can I find Thermochem. tutorial?
  2524. Any reaction with asphalt and magnetized iron.
  2525. strong and weak electrolytes-need help plzz
  2526. Standard orgo
  2527. Can someone help me rank these?
  2528. Finding critical temperature from equation of state
  2529. [SOLVED] Chemistry - how to do oinic equations
  2530. How to derive radius ratio and calculate reaction energy
  2531. [SOLVED] boiling point
  2532. Microorganisms please help!!!
  2533. [SOLVED] Simple Grade 11 Question ! Help Please
  2534. C5h11oh
  2535. molecular formula of hydrocarbon
  2536. Enviro Chem.- simple ideal gas law calculation.
  2537. Biology
  2538. How would you prepare a 500 ml lab stock of:
  2539. Help with Half-Life and a First-Order Process
  2540. Help me out with electron configuration. :[
  2541. [SOLVED] Resonance Structure
  2542. Partial Pressure Problem
  2543. [SOLVED] Organic Chem - Resonance Structures #2
  2544. [SOLVED] Resonance Structure #3
  2545. Anyone know how to draw SO2 in marvinsketch with octet on all atoms?
  2546. Solid-Vapor Equilibrium
  2547. [SOLVED] Resonance Structures
  2548. Meiosis I Cell Division
  2549. Thermodynamics
  2550. Thermodynamics
  2551. EDTA titration?!!!URGENT NEED HELP
  2552. [SOLVED] Organic Chemistry
  2553. Chemistry solution colors question
  2554. Hydrocarbon enthalpy profiles
  2555. Conversion of Ethanol to Acetone
  2556. Compounds
  2557. Periodic table of the elements
  2558. AP Environmental Science Free Response
  2559. Law of conservation
  2560. Mixtres
  2561. URGENT QUESTION: Chemistry
  2562. Entropy Calculations ... homework help plz
  2563. Organic chem, resonance structure
  2564. Gas density
  2565. d-spacing
  2566. how to start this off ( chem ?)
  2567. Gen.Chem: homogeneous vs heterogeneous
  2568. Manometer problems.
  2569. what is their colective mass
  2570. Chemistry Problem
  2571. cumulative problem
  2572. cumulative problem 2
  2573. Help writing chemical equation
  2574. Supply and Demand Economics
  2575. pv = nrt / ideal gasses
  2576. Ice Calorimetry
  2577. Energy required for expansion into viscous environment
  2578. Amino Acid, Help
  2579. A level chemistry - ligands, d-block elements and complexes
  2580. Hcn + Hf --> ?
  2581. help with this chem question please!!
  2582. Chemistry : Atomic Orbitals
  2583. Bomb Calorimetry
  2584. redox reaction ferrocyanide
  2585. Thin Layer Chromatography
  2586. Acid-Base Equilibrium
  2587. [SOLVED] Osmotic Pressure &amp; Mass Percent
  2588. finding molarity when % by mass is known
  2589. Caculating a mass of product..
  2590. Clausius Clapeyron equation
  2591. Equilibrium and partial pressures
  2592. Clausius Clapeyron equation
  2593. [SOLVED] Titration Lab
  2594. Tracing the path of hydrogen atoms after the ingestion of glucose.
  2595. Vapor Pressure of Ethanol
  2596. Simple Algerbraic Manipulation is Confusing Me
  2597. Chemistry Experiments
  2598. find mass and volume
  2599. [SOLVED] Chemistry equilibrium Question
  2600. Mass problems
  2601. AMU Too many variables......?
  2602. Equilibirum constant
  2603. [SOLVED] vapor pressure
  2604. Total Frustration!!!!Radioactive Decay!!Need Fast Help!
  2605. dissociation energy
  2606. Inorganic Problem...
  2607. Biology essay on cell growth.. please help.
  2608. Inorganic problem...
  2609. Mole Concept
  2610. Action Potenials and Stimulation
  2611. Solubility of Sodium Benzoate
  2612. Titration problems
  2613. Equilibrium
  2614. Help in equillibrium problem with directon of net change
  2615. Van Der Waals forces
  2616. Resonance
  2617. electron withdrawing groups
  2618. Drift Velocity, TCR, and Atomic/ Weight Percentages
  2619. Buffer Solutions adding acid or base
  2620. Stoichiometry problem...
  2621. Enthaply of Solution
  2622. thermal physics: work and heat
  2623. Urgent help needed with volume calculation
  2624. HELP on Hardy Weinberg Problem!!
  2625. Reactions and Themodynamics Related Question
  2626. Reaction steps and Activation Energies
  2627. equilibrium
  2628. Reaction Problems
  2629. Determining Number of Moles Question
  2630. Scientific Method on Hypnosis
  2631. evolution and organic variation
  2632. Osmotic pressure!
  2633. Electrochemistry
  2634. Formulae
  2635. solving chemistry word problems...
  2636. [SOLVED] balancing equation in basic solution
  2637. [SOLVED] equilibirum and solubility product
  2638. Econ problem
  2639. Econ problem2
  2640. Finding the repeat distance in a Unit cell
  2641. Silicon half cell potential
  2642. Finding Ka from pH Titration Graph
  2643. genetic probability
  2644. [SOLVED] Secondary structure of protein.
  2645. [SOLVED] Biology Lab Abstract: Photosynthesis
  2646. Naming in hemistry
  2647. [SOLVED] Anticipated pH of Buffer Solution (urgent!)
  2648. Finding moles in a mixture
  2649. redox half reaction
  2650. Redox Titration - Determining the % of Iron II and Iron III
  2651. Redox Titration - Determining the % of Iron II and Iron III
  2652. 2001 free response Question [urgent]
  2653. Heat of Hydration????
  2654. Help Please
  2655. Sythesis of isopentyl acetate report questions
  2656. making up various concentraions of ethanol
  2657. (chemistry) equilibrium constent
  2658. Classifying Matter
  2659. equilibrium constant questions
  2660. Enthalpy change and activation energy
  2661. Chemistry: Noble metals, big need of fast help...
  2662. How many moles are in 1kg ice/water?
  2663. Chemical equilibrium: Enthalpies and equilibrium contsants
  2664. Net Ionic equation
  2665. Buffer Systems
  2666. Applicatino of Raoults Law and melting point
  2667. help with enthalpy
  2668. Polyatomic Ions
  2669. Gregor Mendel
  2670. gravimetric analysis of a carbonate
  2671. concentration
  2672. Biology; clarification of apple juice, help please!
  2673. Homework help for chemistry
  2674. density ?
  2675. pH curve and pKa
  2676. Thermodynamics - Entropy&Heat dispersion
  2677. stoichiometry Problem
  2678. [SOLVED] Activation Energy related to rate.
  2679. Why is kinetic energy NOT proportional to degrees F/C
  2680. Elementary Quantum Physics
  2681. Alkene reaction with Br2 and NaCl (saturated)
  2682. Fourth Dimension
  2683. Equilibrium
  2684. yeast cells vs. corn seedling
  2685. vapour pressure
  2686. fourfold bonds
  2687. Properties of Tsunamis
  2688. Amount of 6M H2SO4 to lower pH of pool from 7.0 to 4.0
  2689. Kinetics
  2690. Chemistry - acids, bases, equilibrium
  2691. Chemistry-Equilbibrium
  2692. Half-cell / reduction potential?
  2693. Stoichiometry
  2694. [SOLVED] Activation energy
  2695. [SOLVED] need help
  2696. need more help
  2697. equlilbrium constant
  2698. Isooctane combustion
  2699. Chemistry - Nomenclature
  2700. buffers
  2701. Name of non-ionic structural isomers of C2H7N
  2702. Mass Balance Problem - Help Please!
  2703. Buffer calculations
  2704. Calorimetry- how do I know the final temperature?
  2705. CaCO3 breakdown, please help
  2706. Maxwell relations with heat capacity.
  2707. Hybridized orbital scheme for H2O
  2708. Bomb Calorimetry
  2709. microeconomics
  2710. Acid-Base
  2711. What is meant when it is said that a molecule is excited?
  2712. Basic Stoichiometry Question
  2713. Molecular diffusion question; fick's first law
  2714. [SOLVED] Quick question regarding Ka and pH calculation
  2715. valence electron
  2716. Melting Points trend for Primary Alcohols
  2717. Organic Chem: Energy Barriers to Rotation
  2718. Rate Mechanisms
  2719. Hardy-Weinberg Equilibrium
  2720. [SOLVED] Trihybrid Cross Problem
  2721. very urgent question please help
  2722. Arrhenius equation
  2723. The Octet Rule
  2724. The de Broglie wavelength
  2725. The Heisenberg Uncertainty Principle
  2726. calculate the wavelength of an electron traveling at 1.12*10^5m/s
  2727. Pressure question
  2728. What is the value of n for the level in which the electron originated?
  2729. Equlibirum law
  2730. percent hydrolysis/percent ionazation
  2731. need ideas for chemistry paper
  2732. Is I-(aq) oxidized by air oxigen?
  2733. few simple questions about atomic structure and properties
  2734. Help with Titration lab needed
  2735. Chemistry - Finding Molecular Formula
  2736. please help fast!! NaBH4 reduction....
  2737. SOS: Finding pH in Buffer Solutions
  2738. Buffers - Titrations
  2739. Gauche Isomerism/Arrhenius Equation Questions
  2740. [SOLVED] need help with Bisphenol A
  2741. Microeconomic theory
  2742. Microeconomic theory part 2
  2743. Nitrate oxidation state
  2744. Organic Chemistry Question...Isomerism
  2745. TRANSITION state = > help !!!!!!
  2746. finding limiting reactant
  2747. limiting reaction
  2748. Lovastatin in dilute aqueous acid
  2749. common ion effect
  2750. common ion effect
  2751. Question Regarding Polar Protic Solvents
  2752. Biomed: Lead Vectors
  2753. Crude Oil
  2754. Use the experimental values to calculate the enthalpy change in the system.
  2755. Please Evaluate my answer (I feel im doing something wrong)
  2756. [SOLVED] scientific experiment lakoffs theory
  2757. the kinetic of the following reaction
  2758. Alkyl groups
  2759. Aromatic compounds
  2760. Buffer Solution question (mult. choice).
  2761. Which kind of graphing calculator should I buy?
  2762. Question which has me stumped...
  2763. Solutions - Heat of Solution
  2764. Entropy-increases & decreases
  2765. Predicting angle bonds
  2766. total mass of carbon...
  2767. using bond energies to calculate energy changes
  2768. producing ethanol....
  2769. Very Urgent: Need Help With Buffers!!!
  2770. cocentration and molarity
  2771. Endo or Exothermic?
  2772. Equilibrium constant
  2773. Property of Compound
  2774. Complex solubility problem ...
  2775. acid-base equlibrium
  2776. Enthalpy of Neutralisation Strong acid + Strong base
  2777. Chemical structure of Acetyl-Phosphate
  2778. function of Synaptic End Bulb
  2779. Biology lab help needed!
  2780. Another bio lab question!
  2781. % Composition & Finding Formula - Chemistry
  2782. Natural Deduction in propositional logic
  2783. % Composition and Finding Formula - Chemistry
  2784. organic chemistry II questions
  2785. Economics math problems
  2786. Activation energy
  2787. nucleophilic substitution question!
  2788. Meteorite dating question
  2789. Alkene diastereomers
  2790. OChem I Sn1 Sn2 Reactions
  2791. [SOLVED] Diel Alder rxn
  2792. Determining certain mass of a Hydrate
  2793. Rate of Glucose uptake by yeast cells
  2794. [SOLVED] Catalysts and Hydrogen Peroxide
  2795. Pros, Cons, and Moral Issues for Space Colonization
  2796. AAS of mercury in prescence of cobalt
  2797. Thermodynamics
  2798. P&D lab...esterification.
  2799. Boiling point depression?
  2800. Thermodynamics help
  2801. Precipitation calculations
  2802. Energy Assignment: need a step in the right direction
  2803. Structural isomers of C4H8Br2
  2804. molarity
  2805. equilibrium constant queations
  2806. pH of 8.57x10-10M HNO3 solution?
  2807. (Biology) Cell Transport Methods & Mitosis in Animals
  2808. [SOLVED] Redox titration help
  2809. solubility in base
  2810. dative bondig
  2811. More Nuclear Equations
  2812. Empirical Formula
  2813. Standard gibbs reaction energy
  2814. Complete Net Ionic Equations
  2815. [SOLVED] mechanism of cyclohexene
  2816. [SOLVED] Cobb-Douglas functions in economics
  2817. methane, bonding, and more...
  2818. The bodies homeostatic responses to excercise
  2819. [Biology]Orientation of microtubules
  2820. Half equations
  2821. Organic solubility question
  2822. Analytical chemistry Problem
  2823. pH after titration of Weak Acid with a Strong Base
  2824. phenylamine ammonia basicity
  2825. Electrochemistry - Nernst Equation
  2826. Equilibrium Potential of Half Cell
  2827. Industrial uses for Jones Oxidation?
  2828. Basic Mole Concept Questions, Grade 11 Chem
  2829. Empirical Formula
  2830. Heating hydrates
  2831. Chemical , Pericyclic Reaction
  2832. aqueous solutions
  2833. polar molecule...
  2834. concentration of hydrogen ions...
  2835. ionic and covalent bonds...
  2836. Help with TITRATIONS URGENT!
  2837. AP Chemistry -two interesting questions -- PLEASE HELP!
  2838. 2 interesting think questions...
  2839. quantity of heat absorbed or released...
  2840. Buffering capacity experiment
  2841. Standard light sources
  2842. Ester reaction with sulfuric acid
  2843. [SOLVED] Photosynthesis
  2844. [SOLVED] Reaction Mechanism (Shouldn't Be Too Difficult)
  2845. Population Genetics: Inbreeding
  2846. Intermolecular Forces
  2847. Leaf Pigments
  2848. Pressure
  2849. Gibbs Free energy
  2850. Chemical Equilibrium
  2851. AP Reaction equations
  2852. Paper Chromatography
  2853. tough electrolysis question (really!!!)
  2854. Determine amount of glucose-1-phosphate & glucose-1,6-diphosphate
  2855. Electronegativity
  2856. Determining coordination sphere from UV, CFSE
  2857. Chemistry: would someone verify my work, please?
  2858. Chemistry: Moles
  2859. Social Relevance Chemistry
  2860. Photosynthesis
  2861. Biochem practice exam help - Test tomorrow
  2862. Percent Yield in Moles
  2863. Time Traveling
  2864. Alkyl Halides...
  2865. Calculating the concentration of sodium hydroxide using calorimetry
  2866. MOL question
  2867. Need help with take home test
  2868. Determine size of planet's core by distance S-waves travel
  2869. Chemistry: Atomic Orbital
  2870. Chemical Equation
  2871. Acid Base
  2872. Investigating the loss of nitrogen, as urea, from the body
  2873. Wobble Hypothesis
  2874. Chemical Reactions
  2875. Electron Config of Mn +4
  2876. Detemination of dissociation constants of weak acid
  2877. Detemination of dissociation constants of weak acid
  2878. Empirical Formula
  2879. Internal Energy of Natural Gas
  2880. Equilibrium and pH
  2881. [SOLVED] Hiv
  2882. (chemistry) entropy
  2883. [SOLVED] Hiv
  2884. Aids
  2885. Dna/rna Strands
  2886. free-radical bromination of propane in the presence of chlorine
  2887. Subshells
  2888. Steady Flow Equation
  2889. Electromerism
  2890. [SOLVED] Le Chatelier's Principle - What is an equilibrium shift?
  2891. A few of questions about DNA
  2892. chemistry: buffers and pH
  2893. Partial Pressure/ICE Chart
  2894. [SOLVED] Pressure/Mass Relationship
  2895. calculate crater diameter
  2896. Outreach activity/demo- pharmacy
  2897. Genetics Problems- some help
  2898. Finding Activation Energy From Arrhenius Plot
  2899. Ionic equations and Spectator Ions question REALLY SHORT
  2900. [SOLVED] Percent of solution
  2901. Ionic equations and Spectator Ions
  2902. Specific Heat
  2903. Lit value for standard enthalpy change of formation for aqeuous HCl
  2904. [SOLVED] Enthalpy of a Reaction
  2905. [SOLVED] BioChem Amino acid
  2906. Chlorine production
  2907. How to determine the product of a Chemical Reaction.
  2908. what's differance between J-shape cure & S-shape curve
  2909. molecular diffusivity
  2910. Vapor pressure
  2911. Genetics problems- punnett squares
  2912. Genetic variation question
  2913. using density to find the % composition of an alloy
  2914. Ligands
  2915. Organic question
  2916. electrochemistry easy question
  2917. Arrhenius equation (chemistry)
  2918. Forming precipitates...
  2919. Strengths of Acids Problem
  2920. Moon or mars conolization?
  2921. Biology - Frequency of allele problem
  2922. Experimental Molecular Weight higher than Literature Value
  2923. Release of Heat in kJ - Immediate Help Needed
  2924. [SOLVED] Energy Question
  2925. conductivity of organic compund
  2926. [SOLVED] free energy of formation
  2927. Chemical equilibrium
  2928. Help needed with reaction equation
  2929. acid rain titration problem
  2930. augmentin question
  2931. Biotechnology: Plasmids
  2932. [SOLVED] Hydrogen bonding
  2933. Avogadro's Law and Ideal Gases
  2934. chem h.w quest
  2935. [SOLVED] Electronegativity Confusion
  2936. [SOLVED] Acids, Bases, and Salts
  2937. Can anyone ''write'' this reaction: oxidation of vitamin c with potassium biiodate?
  2938. Electrochemistry Essay Question
  2939. Help: Zn and HCI reaction rate.
  2940. Help with a Primary Standard Equation
  2941. Products of this reactions?!?
  2942. Help please!
  2943. Which compound is LESS stable?
  2944. electron configuration for ions
  2945. any ideas?
  2946. E=mc2 and nuclear fission
  2947. iron 0-phenanthroline complex
  2948. Why does the OH react with HA and not H3O+?
  2949. Organic: How is nucleophilic addition to a carbonyl carbon possible?
  2950. Kinetics of Radioactive decay
  2951. [SOLVED] Electroplating
  2952. new fuels
  2953. question of enthalpy of vaporization the diference from ln to log
  2954. Naming of complex ion CuCl4^2-
  2955. HELP!!! Antibody vs Immunoglobulin
  2956. chemistry problems
  2957. [SOLVED] Electrolysis, factors=&gt;n(product)
  2958. [SOLVED] Equilibrium and Highest [A]
  2959. [SOLVED] Electrolysis, coating
  2960. Does the reaction between H2SO4 and NH4OH produces ammonia?
  2961. Finding pH given molarity and volume
  2962. equilibrium
  2963. glycolysis
  2964. [SOLVED] Electromagnetic induction
  2965. Chemistry - titation with old and new H2O2
  2966. Thermochemistry Problem
  2967. I need help with a quick homework thing
  2968. Chemistry Clock Question
  2969. Questions...Chiral centers,Markonikov's rule...
  2970. Acidicity of KMnO4
  2971. koopmans theorem
  2972. Hubble's top ten discoveries
  2973. Vitamins
  2974. Please Help Check My Problems/Solutions (asap)
  2975. Melting Points...
  2976. Organic Chemistry: acid pKa of a substituted phthalic acid
  2977. Diesel viscosity at 25*C
  2978. [SOLVED] An individual's Gamete production.
  2979. Effect of changing pH of pepsin on hydrolysis
  2980. Isomers of C5H10O
  2981. I want experience of corrosion
  2982. Gibbs energy.....help......
  2983. Chem word problem
  2984. i need book has big book how has big database
  2985. can any one how make amine asid
  2986. Formalise DNA
  2987. Antibiotic Resistance in Bacteria
  2988. Tuberculosis Treatment
  2989. Nerst Equation (Electrochemistry)
  2990. ACS gen chem exam question
  2991. combustion of natural gases
  2992. Symbolic logic, need help with truth table definition
  2993. Electron configuration
  2994. Investigating the loss of nitrogen as urea from the body.
  2995. Equilibrium
  2996. Molarity/redox reactions
  2997. hw help diffusion of gases
  2998. Chemistry - Equilibrium
  2999. Heat of formation?
  3000. [SOLVED] Luminol and synthesis (mechanism of the reaction)
  3001. [SOLVED] Equilibrium
  3002. Rearrangement for elimination reaction
  3003. [SOLVED] Blast furnace and oxygen converter
  3004. [SOLVED] Coal liquification
  3005. Molar mass of acetone
  3006. [SOLVED] Solubility Thallous Chloride
  3007. C4H8 isomers?
  3008. Molecular shape
  3009. Chemistry: Hot-Air Ballon Oxygen Storage
  3010. pH of a salt
  3011. Electrochemistry
  3012. hydrocarbons
  3013. auxins experiment Thanks :)
  3014. [SOLVED] Mass Spectrum * Fragmentation:
  3015. Color of solution
  3016. Determine property of solution
  3017. Need Help with Chemistry!
  3018. Half-Life
  3019. plasma membrane
  3020. Need help with a project involving heavy metals
  3021. Need help with a project involving heavy metals
  3022. Moles
  3023. Gen Chem
  3024. languages
  3025. Salt that gives basic solution
  3026. Quick Question
  3027. How to find the integrated rate law?
  3028. What causes the H bonds in water molecules to last only 10^-11 sec?
  3029. VSEPR model
  3030. electromagnet that plug into wall outlet???
  3031. Cant stand the heat???
  3032. Calculating equilibrium constant
  3033. quick question about equilibrium of a reaction
  3034. Help finding moles of pain killer/moles of hydrogen ion in a pain killer w/ titration
  3035. Molarity vs. molality
  3036. Mass Ratio to Mole Ratio
  3037. Please Help Me With Ap Microeconomics
  3038. Composition of hydrates
  3039. potvirus inclusion bodies
  3040. [SOLVED] Temperature/Metal Help
  3041. Half equation for S2O32-/S4O62- couple
  3042. Anti-hero anyone?
  3043. Reducing the activation energy
  3044. Types of bondings
  3045. Modelling the Earth's Magnetic Field
  3046. Boiling points and hydrogen bondings
  3047. The ideal gas law
  3048. Change in enthalpy and entropy
  3049. Equilibrium problem involving cube root
  3050. Vinyl
  3051. Linked genes
  3052. Hybrid orbital
  3053. chlorides
  3054. preferential meta para and ortho positions substitutions.
  3055. Stochiometry
  3056. Gause's Struggle for Existence
  3057. Nuclear Binding Energy, Fission and Fusion
  3058. Hardy Weinberg problem plz help
  3059. Which one has a greater concentration, 1 molar NaOH or 1 molal NaOH aqueous solution?
  3060. Milk analysis? investigate the proteins
  3061. learning inorganic chemistry
  3062. catalytic oxidation of ammonia
  3063. [SOLVED] Aluminium Hydroxide as Amphoteric Substance
  3064. Electrochemistry; redox potential
  3065. Please help me with these questions!!
  3066. Rates of reaction
  3067. [SOLVED] Water solubility of benzoic acid
  3068. sulfur trioxide hybridization?
  3069. [SOLVED] pH question....
  3070. AP Biology Project
  3071. penicilin molecule
  3072. manufacture of bromine
  3073. please help!! :)
  3074. Redox Titrations?
  3075. Molarity vs. Molality
  3076. Measurement of acetylcholine by pH change
  3077. How much OH- must be added to achieve desired pH?
  3078. Physichal chemistry ideal solutions
  3079. Diamond vs. Graphite
  3080. Simple Gas Laws Question
  3081. What are the colours of Chromium in solution?
  3082. [SOLVED] Do Harp Seal populations effect Atlantic cod?
  3083. trivial question about chemical rxns
  3084. Mg reaction with Ethanoic acid....
  3085. Reaction between Na (s) and water
  3086. [SOLVED] pH of buffer solution
  3087. Phase Changes
  3088. radioacitve decay series (3#) types of equilibrium
  3089. Xray reflection
  3090. CHEMISTRY: acid/base equilibrium
  3091. Reaction that does not reach equilibrium
  3092. Chem Help!
  3093. Reaction for G-3-P oxidizing to 1,3-BPG
  3094. Meiosis Poems
  3095. Integrating the first order rate law
  3096. Can electrostatic forces explain electron configurations?
  3097. carbon oxygen bond stability?
  3098. Producing Methane from Hydrogen
  3099. Say your given a Compound.......
  3100. atomic radii question
  3101. Phosphorus with 5 covalent bonds
  3102. Pop. Ecology r and K strategists plz help
  3103. Redox reactions - general question
  3104. Help with moles
  3105. increased melanin production
  3106. Acidity Trends
  3107. gasoline/energy question...PLEASE HELP!!!
  3108. Kw of Water
  3109. Equilibrium Problem
  3110. sp3, sp2 carbons
  3111. 2 questions about ionic bonding
  3112. Acid strenth of aromatic organic molecules
  3113. Equilibrium Precipitate
  3114. Molarity of a dimer
  3115. Physical Chem Question - Xrays & Crystals
  3116. Finding molecular formula
  3117. rate law confusion.
  3118. Identifying the strongest acid
  3119. Organoclay-polymer interactions
  3120. Finding the emiprcal formula
  3121. Solubility of lead (II) chloride
  3122. conductivity with soluble salts
  3123. Niobium's 5s subshell unfilled?
  3124. help needed
  3125. Reaction mechanism
  3126. The Law of Mass Action explained
  3127. Mendelian Genetic problems
  3128. Genetics: Bacterial Genetics and Specialized Transduction
  3129. Is it true you can only add H to an alkene?
  3130. fermentation
  3131. bond energy
  3132. Relation Between Organ Systems
  3133. Chemistry Quiz Check
  3134. Water-powered car?
  3135. Mapping a chromosome segment
  3136. alkaline phenol + chloroethanoic acid
  3137. kinetics/reaction rate
  3138. Biomolecule
  3139. Acids and Bases - Buffers
  3140. Just a qn on Gravimetric analysis
  3141. Hydrogen, Deuteruim, Tritium
  3142. Determination of effects of sulphation on lead-acid batteries
  3143. Sn1 vs. Sn2 Mechanisms. Strong or Weak Nucleophiles?
  3144. Chemistry 12 - Keq & equilibirum - QUESTION
  3145. Electron Configuration
  3146. Analytical chem help
  3147. Please help me with a few synthesis problems...
  3148. Please help with a few orgo synthesis problems.
  3149. equilibrium constants
  3150. Cubic Lattice Atom Diameter Calculation
  3151. move a pi bond into a cycloalkane
  3152. pH of methylammonium bromide
  3153. chemistry help :]
  3154. What effect does hydroxylamine have on peroxidase?
  3155. density
  3156. electromagnetic spectrum
  3157. Estimating the expected yield of a chemical reaction
  3158. Flashing Blend Dyes? Plating dyes?
  3159. Genetics gene problems..
  3160. Golgi Bodies in cells
  3161. Carbon Di Oxide Lattice
  3162. Anyone want to check my chemistry quiz?
  3163. Glucose/Fructose
  3164. The Combustion of D-LSD
  3165. Questions: about the force of gravity.
  3166. Oxidation State of chromium
  3167. electrode potentials
  3168. Energy needed for the electrolysis of water
  3169. I need help with my chemistry problems
  3170. Q. Ch2=c=o + Ch3ch2oh = ?
  3171. deformation experiment
  3172. Writing Formulas
  3173. Chem. Prob.
  3174. Econ homework Supply/Deman
  3175. anode vs cathode???
  3176. Glucose/Fructose
  3177. Zeolite Analysis! (stuck on ions)
  3178. Chemistry/physics--molar heat capacity?
  3179. I need your help about holographic 3d images
  3180. Travel to Another Dimension
  3181. Lewis Structures and Resonance
  3182. etching graphite
  3183. Dynamic equilibrium (I though I understood now went blank again)
  3184. HOCl+allyl alcohol=??
  3185. Chemistry - analyzing equations
  3186. Microscope questions
  3187. Mass Spectrometry
  3188. mass-volume-pressure relationship
  3189. Redox Reaction Problem
  3190. what is the relationship between Kc and Kp?
  3191. determining intial rates of reaction
  3192. how to find equilibrium pressure when volume changes
  3193. geometrical optics
  3194. Periodic Table
  3195. Not really understanding p orbitals
  3196. Electron Configuration
  3197. Empirical Formulas
  3198. Ideal Gas Law and Isobaric Processes
  3199. Solution Pressure of Nitrogen Gas In Diesel Fuel
  3200. calculating concentrations
  3201. Find molar absorptivity given the following
  3202. Many organic related
  3203. determining OH- and pH of a weak base
  3204. helping socierty
  3205. Econ question
  3206. Sensation of weight of objects
  3207. How to calculate
  3208. Please help
  3209. Electrochemistry - Standard Cell Potentials
  3210. What would happen in this electrolytic cell?
  3211. Please help
  3212. Writing Equations
  3213. chemical equilibrium problem pls help reply soon plss
  3214. Acid/Base Problem PLSSSSSSSSSS help
  3215. egg question
  3216. thermodynamics..please help me with this problem..
  3217. Calculation of molarity - please help
  3218. Redox equation: confirmation
  3219. Calculating Response Factors
  3220. Calculating a standard potential
  3221. Finding out % of As2O3 in a sample
  3222. Question regarding AES
  3223. Easy CHEM problem
  3224. EDTA Titration calculation overlook needed
  3225. Chemistry Extended Essay Help!!
  3226. Ionic concentration / number of ions
  3227. Optical density and dilution
  3228. Organic Chem - Hydrocarbon Naming
  3229. galvanic cell
  3230. Difficult mechanism problem..help
  3231. What is a linear salt gradient?
  3232. [Chemistry] Number of grams
  3233. pl and pKa
  3234. equilibrium reactions with iodine
  3235. redox reacions equations
  3236. Specific Heat of CO2 and Methane Combustion
  3237. Find pH of solution
  3238. Electronic Geometry of Lead(II) Chromate
  3239. KINETICS Initial RATES METHOD!
  3240. How does the universe end? Show the final equation.
  3241. Molarity of a solution.
  3242. redox help ++++
  3243. strong base weak acid titration
  3244. Invetigatory project help
  3245. Rate of combustion??
  3246. Confused (supposedly easy chem question: volume, density)
  3247. determination of pKa Bromocresol green
  3248. Balanced Net Ionic Equation
  3249. Diffusion coefficients of ions in water
  3250. Equllibrium constant values
  3251. derive equillibrium constant
  3252. Does salts react with acids?
  3253. Possible Error in Chloric Acid's Lewis Structure
  3254. help with balancing equations
  3255. Which is the superior science?
  3256. Relation between Gibbs fee energy and Diffusion coefficient
  3257. Advanced Lemon battery!
  3258. Stability of Highest Oxidation State
  3259. Calculating the Original Concentration of Bacteria
  3260. Organic Sample with Hydrochloric Acid and Sodium Hydroxide
  3261. Determining which Nonpolar Solute most likely to be soluble in nonpolar solvent
  3262. Extraction Methods
  3263. electrical conductivity of solutions and titration curve question
  3264. Arrhenius Equation - Chemical Kinetics
  3265. assignment help
  3266. Probability and Statistics Questions!!
  3267. Rates of Reaction Problem - Verification
  3268. Quick question on iodination of acetone.
  3269. Two-Step Mechanism
  3270. Photosystems
  3271. i have a germanium question
  3272. Estimation of Work in Gas Compression - Thermodynamic
  3273. Chem: Sig Figs
  3274. Chemistry: Van´t Hoff factor for baking soda
  3275. Stereoisomerism in dimethylcyclohexane
  3276. calorimetry - respiration action
  3277. pH at Equivalence
  3278. how many sig figs do i use when making conversions
  3279. Organic: Acid or basic nitrogen
  3280. who can tell the name of such organism.
  3281. molarity of solution
  3282. What is the best A4 periodic table to print out and memorise?
  3283. enzymes in dehydration synthesis/condensation reaction and hydrolysis??
  3284. Stability of dihalocarbenes
  3285. what is the Chemical equation of this?
  3286. What is the Chemical equation of this?
  3287. home assignment
  3288. How are ions formed from atoms?
  3289. NADH Nicotinamide adenine dinucleotide
  3290. Theoretical Value
  3291. Chemistry 101 Question
  3292. Determine Which Molecule Is More Polar
  3293. Need Articles relating to research in the health sciences.
  3294. chemistry qns(random)
  3295. which has highest density/boiling point: neon 20 or 22. Please help
  3296. [Chem] Hybrid Orbitals
  3297. Biology: how the wobble effect explains the degeneracy of the genetic code
  3298. silicon
  3299. Dimensional Analysis
  3300. Organic Chem
  3301. what is the difference between dendritic cells and FOLLULAR dendritic cells?
  3302. Why FADH but not NADH in brain ?
  3303. Need help with Star Polaris (altitude and Azimuth)
  3304. Applying Oxidation Numbers to Al + KClO4
  3305. organic, nitrogen compounds
  3306. Use the motion of particles to explain why density is dependent on temperature.
  3307. Why densities of pure and salt water are different
  3308. Direction Vector for Lattices
  3309. conservation of mass
  3310. moles of H3O+ ions
  3311. Help Completing this Ionic Equation
  3312. Planar concentration
  3313. Basic Chemistry Calculations
  3314. Mass range
  3315. Molality
  3316. Molecular weight
  3317. Dilution of NaOH
  3318. Simple volume/mass calculation
  3319. Copper wire length problem
  3320. Boiling point/freezing point
  3321. When i break a pencil
  3322. Elements and similar type of reaction
  3323. Volume measurements
  3324. Enzyme Reaction Kinetics Please Help
  3325. Measuring method's accuracy
  3326. Honors molecular biology homework help... please :)
  3327. Problem with unit conversion question
  3328. Amount of starting material needed for Buffer
  3329. Physical Chemistry Problem!!
  3330. Chemistry Question - Benzene
  3331. Chemical Nomenclature
  3332. Genetic Diversity in squirrels
  3333. Simple Basic Chemistry Problem
  3334. Question about thiosulphate and iodine
  3335. I need help understanding how to read and write chemical formulas!
  3336. Organic Chemistry Help
  3337. two repulsive/attractive forces that influence chemical bonds between two atoms
  3338. Organic Chem help
  3339. mole fraction help
  3340. Physical chemistry- basics
  3341. Organic Chemistry question!!
  3342. reverse of optical isomerism in a reaction
  3343. Question regarding hybridization of Carbon
  3344. How does mobile ions in a solution(electrolyte) conduct electricity?
  3345. calculate the mass in grams of each element in the body of a 57kg person
  3346. Density problem
  3347. Astronomy - Orbit length and Oribital Period of the moon to Mass of the Larger planet
  3348. Specific Heat
  3349. 1st year Chemistry Course in University
  3350. pH Adjustments
  3351. accutane question
  3352. Satellite prediction
  3353. astrophysics- Calculate the altitude of a geosynchronous orbit
  3354. RBCs in an ionic solution
  3355. chemistry-balancing equations! helpppppp
  3356. Stoichiometry - transferable mole values?
  3357. Question on Ferrofluid
  3358. Converting to atoms
  3359. 9yr old 7th grader needs help!
  3360. Blood levels and Plasma levels...
  3361. percent of sodium oxalate... help
  3362. Plant Physiology
  3363. Biology - Action of Pepsin
  3364. How Gravity affects plants
  3365. Coordination Number
  3366. URGENT: Why do you feel hot after you work out?
  3367. chem question on dash-wedge structures
  3368. Percentage Yeild - check answer?
  3369. Weight of precipitate? -
  3370. 3 quick questions...PLEASE HELP!!
  3371. One of these is wrong
  3372. Membrane Potential question: neuron function or location?
  3373. Stoichiometry Help
  3374. Chemistry - stoichiometry, solutions
  3375. FRUSTRATING QUESTION: Condensation Reactions with Covalent Bonds
  3376. Chemistry - Redox Disproportionation Balancing?
  3377. H-bonding
  3378. OCHEM - Linear Combination of Atomic Orbitals
  3379. Diffraction equation
  3380. Chemistry Moles, Molecular Weight
  3381. finding the moles required
  3382. new Chem undergrad
  3383. why does melting point decrease for impure solid?!
  3384. Determining Limiting Reactants
  3385. NEED URGENT HELP:Number of electrons with a set of quantum numbers?
  3386. alkyl halides left in an open container...what happens?
  3387. urgent-miller index
  3388. Adiabatic Expansion
  3389. Enthalpy change of a vaporization rxn
  3390. Please Help to solve a problem
  3391. How to find the Ionization energy of He+
  3392. Questions bout the Chloride Shift in R.B.cell
  3393. Naming BaHPO3?
  3394. Equivalence Point- Concentration
  3395. Please help urgent
  3396. Question about jets
  3397. Specific Heat Help
  3398. examples of convention, radiation and conduction help
  3399. Newton's law help
  3400. true or false/correct if statement is false help
  3401. Chemical equillibria
  3402. molecular geometry structure
  3403. Vapor Pressure problem
  3404. Need help with Excel
  3405. Complete Combustion of C5H12
  3406. first law of thermodynamics rate problem
  3407. Entropically or Enthalpically favorable?
  3408. Equilibrium
  3409. Help in convention, radiation and conduction
  3410. easy percent composition question
  3411. formula to find sunrise/sunset time difference
  3412. Solubility of an acid
  3413. color investigation
  3414. help to solve Non-specific binding in CNT FET
  3415. Ionization and Affinity
  3416. PLEASE......NEED HELP ASAP...WORK DUE 2morrow
  3417. HElp a.s.a.p
  3418. Help With Half Reaction/Redox Equation
  3419. d orbitals first ionisation energy
  3420. Help with calculation
  3421. Mole calculation
  3422. Mass Percent
  3423. Help with balancing equations.
  3424. Help Determining Molecular Formula
  3425. Finding mass based on amu and % abundance
  3426. Mole Fraction problem
  3427. Questions about polyatomic ion compounds
  3428. Quick but Urgent Question Regarding NH4Cl + H2SO4
  3429. Help with nanomolar calculations
  3430. Quick Conceptual Question on Ideal Gases
  3431. solubility and chemical equations
  3432. gas laws problem (need quick help plz)
  3433. Redox Reaction With Nx Nitrogen Compound
  3434. I NEED HELP ASAP! PLZ! (Soluble Solid)
  3435. Biochem Ph Problem
  3436. How can water have a molarity if theres no diff b/w solute and solvent?
  3437. error analysis in titration
  3438. chemical reactions with ether?
  3439. IUPAC name for this compound
  3440. I don't get this pKa pH problem!
  3441. gas stoichoiometry
  3442. OM theory when metals(Ni,Cu,etc) are involved
  3443. VERY URGENT: Please help with Diffusion Question and Membrane Protein question
  3444. Biology Question: HELP PLEASE!
  3445. calculating the work done on a decomposed solid
  3446. how to find the molecular formula out of the molar mass?
  3447. second year university biochemistry - pH and Buffers
  3448. Spectral data -H NMR and C NMR
  3449. acidity of phenol
  3450. Which valence state do I use?
  3451. Is hydrogen non-metallic?
  3452. i need book or web for analysis ??????
  3453. Hemoglobin binding
  3454. Hemoglobin binding
  3455. Acid-Base Reaction with Acetic Acid and Ammonia
  3456. Effects of gravity on blood pressure
  3457. Interpretation of the Tanabe Sugano diagram
  3458. Molecular geometry
  3459. Confused:/ experimental evidence?
  3460. chemistry help polar vs nonpolar
  3461. Hydrogen bonds
  3462. Simple Biology Question
  3463. Stuck with Hess's Law
  3464. energy level diagram
  3465. Stoichiometry Problem
  3466. Nitric acid has a density of 1.42g/ml and is 16 M. Calculate the percent HNO3 by mass
  3467. Need Help With Ratio In Chem
  3468. Is Molarity simply "moles per liter"
  3469. Please help me with some gas law problems
  3470. Does a buffer system have to have H+ dissassoc, or can it be O's instead?
  3471. Photosynthesis problem
  3472. experiment about efficiency of bisulphite as wine preservative
  3473. Calorimetry Question
  3474. Chem problem
  3475. Basic question on recrystallization.
  3476. purpose of distillation?
  3477. which of the following are planar or non-planar?
  3478. Need help calculating the pressure in the bottle
  3479. Need help figuring how to maintain constant concentration in my samples!
  3480. Need Help! Lewis Dot Diagram - NO+ (nitrosyl)
  3481. Thermodynamics
  3482. What is the formula of the hydrate?
  3483. Muscle Fiber Contraction and Calcium
  3484. have a pretty basic chem problem about lights and radiation
  3485. '''URGENT''' Hydrogen Peroxide on Potatoes ISA
  3486. Redox reaction
  3487. Regarding consevation of energy on electrolysis
  3488. Partial Pressures Problem
  3489. Enyme Kinetics: Carbonic Anhydrase
  3490. What happens when two electrons in a shell collide?
  3491. Have I lost my crystals?
  3492. I keep getting errors in a simple copper sulfate experiment
  3493. Some chemistry problems... I don't know where to start...
  3494. Having trouble understand the Mass-to-Charge Ratio
  3495. Intermolecular Forces
  3496. Chemistry Problem
  3497. Shielding Effect and Chemical Shift
  3498. How do I calculate the length of a bond?
  3499. How do I calculate the length of a chemical bond?
  3500. 1st law of thermodynamics, work/heat
  3501. boiling point??
  3502. Trick Question? (Making a solution)
  3503. Oxidation or Reduction
  3504. Mass-Volume Question
  3505. Mass of Reactants and Products
  3506. Mass of Reactants and Products
  3507. Charles, Gay-Lussac and of course Boyle
  3508. Volume/Volume %, manipulating units
  3509. electrolysis of water
  3510. I need help with the equations
  3511. Mass Relationships In Chemical Reactions
  3512. Titration: Chemistry
  3513. Octet Rule
  3514. solubility question
  3515. Help with finding molecular formula at a specific P, V, T
  3516. Chemistry Question
  3517. Molarity and molality
  3518. limiting reactants
  3519. finding molar mass of unknown element
  3520. Calculating Final Temperature
  3521. Find volume of a mixed gas at STP
  3522. Organic : Acidity/basicity
  3523. Chem: Soluble with Insoluble: Will Reaction occur?
  3524. Isomerization of dimethyl maleate to dimethyl fumarate
  3525. Solubility Product Constant Question
  3526. CHEMISTRY: Partial Pressure
  3527. Enzyme Kinetics Problem
  3528. Laboratory Chemisry Question - Redox Reaction
  3529. calculate concentration
  3530. concentration of a solution
  3531. titration- pre lab. really don't understand
  3532. Enthalpy of Reaction
  3533. Estimating p50 for Hemoglobin/Myoglobin
  3534. Molar mass of each substance
  3535. Question about Compound Purity
  3536. distillation question~
  3537. 6th Grade Science Experiment Help
  3538. Temperature at zero pressure
  3539. Freezing point
  3540. Titration
  3541. My first chemistry test ever
  3542. Chemistry problem involving gas laws
  3543. Net ionic equation
  3544. Which electron configuration is not possible for As? Don't know much about spdf orbit
  3545. What is the electron configuration for Gd?
  3546. Grignard Reagent Solvent
  3547. Ionizing Cesium Atom
  3548. Checking Answers of Chemistry Assignment
  3549. How do you convert Density into moles?
  3550. adding acid to buffer
  3551. question about unknown type of metal ion
  3552. Schiochemistry...
  3553. lmax or 1max ??
  3554. Error Analysis
  3555. Stereoisomers
  3556. Simple question?
  3557. Nomenclature
  3558. Solubility Problem
  3559. Hey, I'm helping a HS student write a research abstract
  3560. velocity distribution curves general inquiry
  3561. velocity distribution curves general inquiry
  3562. Question about sugars
  3563. Convert Kp to Kc?
  3564. The bonding in aluminium oxide
  3565. Please i need a fast help
  3566. simple distillation
  3567. Biology trouble
  3568. Electron delocalization in Benzophenone
  3569. What is the order of reaction for Phenolphthalein?
  3570. 3 Genetics/Genomics Questions
  3571. Interpreting a mass spectrum.
  3572. Hyperchem 8.0
  3573. How to name K2C204
  3574. Difference Spectrum
  3575. Remove electron from gaseous atom
  3576. Biology: Evolution and Variation
  3577. Freezing point depression
  3578. Dissociation energy ?
  3579. Bond Energy and Bond Lengths
  3580. LCD molecules
  3581. Transferring electrons
  3582. Determination of % Comp of Al/Zn Alloy
  3583. How much segma bonds are there ?
  3584. Mass Vs. Weight
  3585. which has the smallest radius?
  3586. Atp
  3587. Question about activation energy and reaction rates.
  3588. titration, molecular mass
  3589. 11th gr. chem (composition of a hydrate)
  3590. Finding the composition of a mixture at equlibrium
  3591. Equilibrium
  3592. Redox Equation Addition
  3593. Calculating pH given M
  3594. depth determination of layer in seismic survey using intercept
  3595. hydrolysis
  3596. Chemistry: determing name of a compound.
  3597. Nitrogen Biogeochemical Cycle (kinda)
  3598. Net Ionic Equation, easy
  3599. Solublity
  3600. Limiting and Excess Reactants in Redox
  3601. How do ions move in an electrolytic cell?
  3602. Atoms, Moles, Grams Conversion
  3603. HELP!!!A question on vapour pressure
  3604. STP question
  3605. hereditary disease,minting protein
  3606. Elements
  3607. H NMR Spectrum - Molecular Structure
  3608. Quantum levels and electron configurations?
  3609. de Broglie Wavelength
  3610. HELP NEEDED!!!!!! regarding distillation................
  3611. Reaction with Limiter
  3612. Chemistry - vapor pressure
  3613. bond angles
  3614. phase diagram of pure silver
  3615. Specific Heat problem
  3616. Biology - Follicle Development (or lack of) During Pregnancy?
  3617. Dissociation constant from absorbance
  3618. Electron Transmission Spectroscopy
  3619. quick question about enzyme allosteric inhibition
  3620. Quantum chemistry/physics
  3621. One of the following undergoes a reaction...
  3622. Heat of Formation for Ammonium chloride
  3623. How do you do a Lewis Diagram for a charged molecule?
  3624. Differences between DNA Polymerase I, II, and III
  3625. Intermolecular forces
  3626. VLE please help
  3627. Standard Entropy Change and Spontaneity
  3628. really need help! calorimetry
  3629. calculating effective nuclear charge
  3630. organic chemistry SN1 reaction's
  3631. Calculate the Concentration of Triprotic Acid
  3632. Empirical and Molecular Forumla calculation
  3633. Is a reaction likely to occur in these situations and what is the net ionic equation
  3634. finding pH using acidity/basicity constants
  3635. Energy with inflation of Balloon problem
  3636. chemistry Lab reports
  3637. organic chem!!
  3638. Electrophilic Addition Mechanism
  3639. Is this an aromatic or not
  3640. Error Propagation
  3641. Bond Enthalpies..plz help!!
  3642. Element Density of Period 2
  3643. Chem Mole: Molecules to Atoms?
  3644. Evolutionary Biology
  3645. Max. number of electrons in an expanded octet?
  3646. Calculating the vol. of hydrogen needed to hydrogenate under certain conditions
  3647. Titration Lab
  3648. Predicting products of acid-base reactions
  3649. Ka of weak acid indicator
  3650. Functional Groups
  3651. conformations??
  3652. The ionization energy of atomic hydrogen?
  3653. I need help with making some molecular and net ionic equations
  3654. Buffer Solutions
  3655. Net ionic equation questions.
  3656. Beer's law
  3657. Gaseous pressure calculation
  3658. Molarity and Oxidation states
  3659. Buffers, pH, and strong base
  3660. Magnesium and HCl lab
  3661. recrystallization?!
  3662. pH scale
  3663. Growth Hormone..
  3664. Does Anybody Know How to Name the IUPAC of these Compounds
  3665. sodium vapor lamp question
  3666. Question on fluorescence
  3667. Determining Ksp for Silver Sulfate
  3668. organic chemistry determing nucleophile strength
  3669. A quick PPM question
  3670. Lewis dot, electronic and molecular geometry
  3671. net ionic equation
  3672. Balancing Chemical Equation
  3673. Dilution Factors, Determining Molarity
  3674. diffusion lab semipermeable membrane help
  3675. Balancing Equations.. This one is a beast!
  3676. H nmr
  3677. AS Chemistry help
  3678. Comparing acidity among 3 compounds - pic included
  3679. Reducing agent.
  3680. Q in crystal field theory
  3681. Balancing using half reaction method
  3682. Concentration of Hydronium
  3683. pH
  3684. What else turns iodine blue black?
  3685. Kb
  3686. Can someone explain?
  3687. Organic Chemistry: Aromatic Compounds
  3688. synthesis
  3689. Proving equations are equivalent
  3690. How to calculate heat of combustion?
  3691. Chemistry: 2 samples of the same liquid but different temp - final temp?
  3692. Kinetic/Potential Energy, Endothermic/Exothermic
  3693. Saltcrystal
  3694. How much Chromium metal will produced from the above reaction?
  3695. What is the frequency v0 for the metal and what is the wavelength of the emit electro
  3696. What was the energy level of the individual electron of hydrogen atom ( Η )?
  3697. How much is the energy efficiency of the process of photosynthesis?
  3698. energy barrier?
  3699. Alternative to Sodium Acetate Trihydrate
  3700. Hydroxide expirement *Need help by tmr
  3701. The reaction of rusting iron and the heat produced
  3702. Zn(OH)2 and Al(OH)3
  3703. Titration question
  3704. Looking for someone to check my chem. questions.
  3705. Determining the empirical formula of Magnesium Oxide
  3706. IUPAC naming rules
  3707. Can Experiment (Pressure)
  3708. Ka estimate
  3709. large error for my freezing point depression.
  3710. Metamers (All you need to help me on is whether the compounds are metamers or not)
  3711. constant pressure calorimetry
  3712. Simple Distillation
  3713. Redox potential (Using the Nernst Equation)
  3714. science help
  3715. solid-liquid phase diagram
  3716. Converting Celsius to Kelvin.. Easy but slightly confusing
  3717. Question about the derivative of Gibbs Energy
  3718. electron configuration
  3719. Balancing equations
  3720. Need to find Density and specific heat of NaOH
  3721. Chemistry Lab Help!
  3722. Solubility
  3723. Determintion of the volume strength of the solution of hydrogen peroxide provided....
  3724. writing formulas for compounds.
  3725. calculating theoretical yield of resulting alum from water dissolving....help asap!
  3726. Hydroboration Reaction with BD3
  3727. Thermochemistry question
  3728. Electronic & Molecular geometry: XeO3F2
  3729. Quantitive Energy problems
  3730. Separating salt and sodium carbonate help
  3731. Acid-Base Properties
  3732. antifreeze in water problem
  3733. Le Chatelier's Principle
  3734. Vsepr
  3735. Chemistry Question - Distillation - Why tilt the condenser?
  3736. redox half reaction
  3737. Chemistry Pressure Lab
  3738. phenol + fecl3
  3739. amide for esterfication
  3740. Enthalpy
  3741. Marine Bio
  3742. Simple transposition
  3743. Mass of Au produced?
  3744. s
  3745. extraction?!?!
  3746. Finding moles from volume? diatomic
  3747. Producing required energy from Combusting Methane
  3748. Help with 2 questions coast of electricty and pressure
  3749. Hydrate Lab Help? PLEASE? DUETMRW><
  3750. Stoichiometry: finding the yield in reaction of sodium azide with iron oxide
  3751. Stoichiometry: yield of reaction between hydrochloric acid and calcium carbonate
  3752. addition of equilibrium constants
  3753. Crystallography
  3754. vapor pressure saturation
  3755. Proofread my mineralogy essay? More for structure/coherency than accuracy.
  3756. nemertine-nemertea
  3757. Glucocerebrosidase
  3758. Need Help - Chemistry
  3759. Biology Cell Question
  3760. Activation energy
  3761. Chemistry kinetics
  3762. Questions on exceptions to Aufbau principle. . . Please help!!!
  3763. I need help with how to do change in enthalpy
  3764. change in enthalpy help?
  3765. Cells (Please Help Quick)
  3766. Atomic Size
  3767. CHEM: Bond Order
  3768. Unknown Organic Chemicals Distinction
  3769. First Order Decomoposition
  3770. CHEM: Triple point Temp and Pressure
  3771. carbon 14, radioactive decay of ocean waters
  3772. Constant Pressure Calorimetry *help please*
  3773. Need help understanding sceanario only, is it a closed reversible system?
  3774. Activated Complex theroy
  3775. Lewis Structures and Valence Electrons?
  3776. Calculating dipole moments
  3777. find the molarity and ph of diluted HCl
  3778. Which acid is stronger?
  3779. Organic Chemistry!!
  3780. Aromatic question
  3781. Chemistry kenitics problem
  3782. Chiral or achiral molecule?
  3783. chemistry
  3784. chem
  3785. Dna
  3786. Explaining photosynthesis
  3787. ChEM: ground state eltron configuration
  3788. Calorimerty problem!
  3789. nucleoside
  3790. chem
  3791. chemistry
  3792. SN2 reaction
  3793. Acids and bases
  3794. Main products of a reaction
  3795. Number of products
  3796. Stability of carbocation
  3797. chemistry
  3798. how to find abundance of 206, 207 and 208 Pb
  3799. Analytical chem lab and dilution factors
  3800. Do these bond when..
  3801. upwelling rates in the ocean involving carbon and nitrogen
  3802. Recrystallization Percent Recovery
  3803. 1st Year chem question
  3804. Can Anti-freeze freeze?
  3805. Liquid-liquid Extraction
  3806. Planar representation to chair conformation
  3807. Quick doubt on organic nomeclature
  3808. Simple Mole Conversions
  3809. Solubility Product Constant Lab
  3810. Isoelectric point
  3811. Determination of the enthalpy of combustion of Magnesium using Hess's law
  3812. Why doesn't brass corrode?
  3813. Question about Le Chatelier's Principle with regard to Temperature.
  3814. combustion and rate of reaction
  3815. Can unsaturated fats become saturated?
  3816. Hill's equation and plot-Biochem
  3817. Isoelectric point
  3818. some probem in my salters investigation
  3819. Trade limit specialisation ! NEED HELP!
  3820. Having a massive brain fart... SIMPLE "molarity -> molality" conversion...
  3821. Effect of inhibitor on enzyme
  3822. Dme + h2o
  3823. i need help with general unknown (qualitative analysis)
  3824. Quick lab questions.
  3825. Lysine protonation
  3826. a couple of geostationary calculations
  3827. Totipotency of a cell
  3828. chemistry, affinity
  3829. Mass Spectrometry of CCl4
  3830. Classifying Ionic Compounds
  3831. Diagram for the Structure of BrCl4+?
  3832. Defendmyaname, astronomy questions.. please help?
  3833. can i seperate co2
  3834. Electrochemistry
  3835. Entropy
  3836. More Entropy
  3837. Chalorific Value and Diesel Formula
  3838. statistics in biomedical
  3839. Chemical equilibrium help!!!!
  3840. Qualitative Solubility Predictions
  3841. Chem Eq Balancing - underdetermined system?
  3842. calculating atomic radius from weight + density
  3843. Strange result in stoichiometry limiting/excess problem.
  3844. volume of HCP unit cell from radius + c/a ratio
  3845. Why is Electrolysis Not Efficient?
  3846. Thermodynamics
  3847. Chem Weak Acid Strong Base Help
  3848. Need Help With My Unit Assignment!!!!(DUE December 5th)
  3849. question about geomagnetic poles and geographic poles, distance to each from a city
  3850. Calculating Equilibrium constant
  3851. Sexual Selection Question
  3852. [Chemistry] questions on solubilty of bases and naphthalen-2-ol
  3853. Vitamin C coursework help
  3854. Heat of reaction
  3855. Sigma & Pi bonds
  3856. writing chemical equations w/ catalysts...
  3857. Need help finishing my lab....
  3858. Extraction Lab
  3859. Atomic Absorption Spectroscopy
  3860. Purifying 'Al' using 'HF'
  3861. thermodynamic cycle
  3862. Lithium Borohydride
  3863. Incomplete octets w/ lone pair
  3864. Determine the homolytic C-H bond strength in CH3OH employing the following data.
  3865. weight percent of Ge needed to yield alloy with x atoms/cm3
  3866. E, Z isomerism
  3867. help me please (thermodynamics)
  3868. NaCl solution osmotic pressure
  3869. partial pressure question (should be easy)
  3870. partial pressure question
  3871. Thermodynamics - ΔG° and pH
  3872. Relavite acidity
  3873. weight percent of element to give specific density for alloy
  3874. Mass fraction problem!
  3875. Potenital Differnce between Salt Bridge and rxn
  3876. Urgent: In need of essay reader !
  3877. are these the correct lewis structures
  3878. Diels-Alder Reaction
  3879. philosophy
  3880. Help with Identifying the group in ionic compund formulas
  3881. Calculating deltaH°f
  3882. Bridging Step of Krebs Cycle....oxidatiion or reduction?
  3883. chemistry lewis structure
  3884. Electron transfer in Redox equation
  3885. Lead-acid battery
  3886. % Ionization vs. Concentration of Strong Acid
  3887. Concentratin of Solution
  3888. Chloroplast
  3889. Abbreviation for the Mole
  3890. DNA Comparison of Potential Energy, RMS Deviation, Electrostatic Energy
  3891. differentiation of compression factor
  3892. chemistry, how do i draw the lewis structures for these molecules?
  3893. Marked Unfairly
  3894. % element by mass in soln.
  3895. Determination of an unknown concentration
  3896. Calculating Gas Volume at STP
  3897. Bacteria Growth Rate
  3898. Reaction Heats
  3899. ionic bonds
  3900. Weak acid/strong base titration (Acetic acid/NaOH)
  3901. Citric Acid Cycle --matching carbons
  3902. Glyoxylate cycle question...
  3903. Hund's rule spin
  3904. Several Questions Re. Thermodynamics
  3905. ATP in Fatty acid oxidation and citric acid cycle
  3906. Lattice positions etc
  3907. Question Re. Ksp
  3908. Sarcosinemia, rare genetic disease(cant find a history of it for my bio ISP)
  3909. what is the lewis structure for IO3
  3910. % of titrated sample
  3911. EMF and standard electrode potential
  3912. Probability of finding a spherical cavity of a radius in proteins
  3913. guys.. is any one know about the formation of Acetylsalicylic Acid
  3914. Flame Test Lab Colors
  3915. balmer and pashen series analouges
  3916. Chemistry, mL required to Concentration of HNO3
  3917. Potassium chloride vs. Sodium chloride for osmosis?
  3918. kinetics of bromide-bromate reaction
  3919. consentration question(basic chemistry)
  3920. Difference between van der Waals forces and dispersion forces
  3921. Determining Molar Solubility
  3922. what is dative bonding?
  3923. finding bond angles
  3924. Finding pressure of argon gas
  3925. Percent Composition
  3926. Emperical Formula for hydrate
  3927. Homework HELP, cell questions
  3928. Chemistry, colligative properties-freezing point
  3929. Physical chemistry...exam
  3930. composite activity coefficients
  3931. carbon 14 ratio
  3932. Help: Determining the equilibrium conversion and final pressure of a reacting system
  3933. Gas law problems
  3934. how to balance this formula..
  3935. how to solve this compound question?
  3936. Why HCl is not a hydrogen bond
  3937. Getting a negative result estimating FST between populations
  3938. Aspirin + NaOH => ?
  3939. Astronomy 100 - Stellar Temp, Mass, Luminosity
  3940. Understanding reaction products
  3941. Boltzmann's constant/Maxwell-Boltzmann dist. of molecular speed help
  3942. Enthalpy
  3943. Heats of solution + Heat of Reaction ?
  3944. Enthalpy
  3945. Physical Chemistry
  3946. peptic(zymogen cells)
  3947. NaOH(s)-->NaOH(g)
  3948. chemistry, equation and formula
  3949. Metric Prefixes
  3950. Sn-Pb phase diagram
  3951. Nucleophiles and carbonyl compounds .
  3952. Molar Mass and density gas relationship
  3953. Biofuels!
  3954. Question about orbitals?
  3955. Percent Composition
  3956. Activation free energy for nucleation
  3957. Polar bonds
  3958. Question about gas and volume
  3959. The chemical potential
  3960. Vapor pressure question in chemical thermodynamics
  3961. Convection
  3962. Conceptual--Combustion of a sample
  3963. Ksp of Calcium Hydroxide - A Percentage Error of 480%??
  3964. Starch, commercial bleach and halides
  3965. what is this structure??
  3966. pH of a solution of a weak acid and a weak base (not conjugates, not BHA [NH4CN])
  3967. Chemistry - Calculating moles, mass and percentages
  3968. Electron Configuration of Large Atoms
  3969. Hybridization/Effective Nuc. charge questions
  3970. specific heat of combustion?? help
  3971. Magnesium oxide smoke lost during the reaction?
  3972. MCAT Preparation Question - Solutions
  3973. Chemistry-Born Haber Cycle(pls help!!)
  3974. Biology - Different Stages of Mitosis
  3975. Help for grade 11 chem questions
  3976. Gibb's free energy confusion!
  3977. Intermolecular forces
  3978. Fundamentals of Reaction Theory: reaction rate constant in the statistical ensemble
  3979. Chemistry: Degeneracy of states caused by multiplicity of spin
  3980. % by mass concentration
  3981. *urgent* Finding unknown acid concentration
  3982. How would you go about describing a precise position?
  3983. light emmiting chemical
  3984. Chemistry Homework-- Stoichiometry: Volume and Particle Calculations
  3985. Organic Chemistry Synthesis Question
  3986. Pushing capacity of a human being
  3987. Question on how to prepare a buffer solution
  3988. How to distinguish between pairs of componds?
  3989. Distinguish between polyunsaturated vegetable oil and petroleum oil
  3990. Polar bonds...
  3991. Did I work this problem correctly?
  3992. [Electrochemisry] How to find the Cathode and Anode, and oxidation and reduction
  3993. PD Experiment Help
  3994. Heat of Combustion
  3995. Chemistry - Edman degradation
  3996. Is this a feasible experiment?!?!?
  3997. NaNo_3 dissolved in NaCl saturated solution
  3998. maximum voltage
  3999. Organic Chem- Mechanism Question(Oxidation of Glycol)
  4000. Faraday's Law of Electrolysis
  4001. Ionic solids: enthalpy and entropy
  4002. Genetics Question - Testcrossing
  4003. P/O ratios
  4004. Lewis Structure of Sodium Benzoate
  4005. Diamond Lattice Question
  4006. Finding the percent weight an element in an Alloy
  4007. Materials -- unit cell question
  4008. Thermodynamics help! Ideal gas equation
  4009. Reaction of strontium nitrate + copper (II) sulfate pentachloride?
  4010. Glycine/hydrazine buffer
  4011. asa question
  4012. Henderson Hasselbalch equation! Where did I go wrong?
  4013. circulatory and respiratory system help!
  4014. Slide preparation question
  4015. Beer-Lambert equation
  4016. How to calculate the molar enthalpy
  4017. Wave lenght in micrometers
  4018. Thermochemistry question
  4019. Crystallization Report - What is a Good Yield?
  4020. 'Resistance to Temperature Changes'
  4021. Why is it possible...
  4022. How are atomic radii and H-bond strength related?
  4023. Five similarities between DNA and Protein?
  4024. Comparing Molecules of Gases
  4025. Organic Chemistry- Geometric and Structural Isomers of C6H12
  4026. Predicting a precipitate
  4027. Question about viruses ....
  4028. Thermodynamic stabilitiy of colloidal systems
  4029. Average diameters of colloids
  4030. Beginner's Mass Ratio Problem
  4031. Equations
  4032. describing bond between elements..
  4033. Electrochem help
  4034. Strong or weak acid?
  4035. how many electrons on each level type
  4036. how to describe this bond..
  4037. how to describe the the yonic value and type of bond of this formula..
  4038. sort these substances by boiling point..
  4039. how to know if a mulecule is polar or nonpolar
  4040. how to calculate the dipole moment of a molecule??
  4041. Liquid Chlorine-Inter and Intra Molecular Forces
  4042. isotope problem
  4043. Chemistry - Molar Entropy Question
  4044. Heat of Reaction question
  4045. Chemistry- two point Arrhenius Equation (miscalculation??)
  4046. Effect of degassing on particle size
  4047. sublimation and fusion.
  4048. Diffusion constant
  4049. Diffusion problem
  4050. Peptide group planarity
  4051. Bio Questions on Genes...
  4052. Calculate difference in molar entropy
  4053. Astronomy: Estimate the age of the observable universe
  4054. Boiling point on top of mount everest
  4055. Number of chromosomes in each step of mitosis in human
  4056. Stoichiometry.... Did I work this problem correctly?
  4057. Physical Chemistry photoelectric question... stumped
  4058. Chemical composition of the earth - Astronomy/Chem question
  4059. chemistry
  4060. Equation
  4061. moment dipole strength help..
  4062. Quality and percent volume
  4063. Stains and Fabrics
  4064. Chem: Equilibrium Constant Question
  4065. Chromosome damage
  4066. Bronsted - Lowry Theory Of Acids and Bases
  4067. Molecule - Polar or Non Polar?
  4068. Boiling Point
  4069. Ionic nomenclator
  4070. Cell division during pregnancy
  4071. S-layer proteins and storage
  4072. mc(delta) t (What am I doing wrong?)
  4073. cell adhesion
  4074. help!//Resting membrane potential, hyperpolrization ?
  4075. calculating mass of reactanrs
  4076. Independent and Dependent Variables
  4077. Calculating Molar Mass from a BCC
  4078. Calculating Avagodro's Number
  4079. limiting reagent
  4080. Titration of H2SO4 and NaOH
  4081. Lactate absorption errors
  4082. Partial pressure problem
  4083. Gen. Chem: Solubility
  4084. Find Limiting Reactant
  4085. PV = nRT; units
  4086. calculating heat change
  4087. Phase Diagrams - Density?
  4088. the changes
  4089. Electrical Work Help!
  4090. Gas Equilibria
  4091. Stoichiometry
  4092. Need help with stat thermo qtn
  4093. Phthalic Anhydride derived Polyesters and Nylon structures+reactions????
  4094. empirical formula of magnesium oxide
  4095. probability - conditional
  4096. Entropy
  4097. Solubility problem
  4098. Gaussian 03W Bonding
  4099. resonance structure
  4100. energy-level diagram
  4101. Calculating the composition of vapor in mass percent
  4102. Manipulation of Heat and Work Equations
  4103. formal charge
  4104. Thermodynamics: Enthalpy of Sucrose
  4105. O-Chem Alkyl Halide Reaction with a Chair Conformation
  4106. acetylsalicylic acid in ferric chloride test
  4107. Unit clarification
  4108. Rate Constants From Equilibrium Constants
  4109. Phosphates Colorimetric Determination
  4110. Organic Lab Acetanilide Crystallization
  4111. mass times avogadro's numbers = molar mass ??
  4112. Chemistry pH problem help plz NaOH and HCl
  4113. pH of buffer with addition of conjugate base
  4114. Calculating mass of vapor from vapor pressure
  4115. n= cv
  4116. Chemistry Gas problem
  4117. The Chemical Basis of Industry
  4118. Solubility Combining Ionic Equations,
  4119. Solubility Combining Ionic Equations,
  4120. Activation energy
  4121. Isomers
  4122. Concentration problem
  4123. acids and bases
  4124. specific heat capacity
  4125. Gas Law problem.... please help
  4126. What is wrong with the following DNA strand? Why is this incorrect for DNA?
  4127. Coordination Chemistry
  4128. Spindle formation
  4129. rate laws
  4130. chemistry- ideal gases
  4131. w_max & T in fuel cell
  4132. How many grams in 1 amu ?
  4133. Find the molality
  4134. pH
  4135. Another pH
  4136. Force of Attraction between two ions?
  4137. I need help!!! WHEATSTONE!!
  4138. The pH of a Mixture of Weak Acids
  4139. Biophysics and ion channels
  4140. Slope question?
  4141. synthesis of oxalate complexes, post lab question
  4142. reaction rates
  4143. electron configuration
  4144. Question about deriving Gay-Lussac's Law
  4145. Ionization Problem
  4146. Carbon Dioxide in Water
  4147. How would a biologist determine that a mutation has occurred when...?
  4148. PartB Distribution of coefficent in immiscible solvents
  4149. A couple chem questions
  4150. BIO: questions about GFP and CaM
  4151. Octet and Duet Rule
  4152. Analysis of simple salt
  4153. Redefining the meter, kilogram, etc.
  4154. What mechanism is responsible for the sequencing of amino acids?
  4155. Reaction rate mol-1sec-1 to sec-1
  4156. 1-bromobutane conversion work shown... please help!
  4157. Writing Word Equations
  4158. GAS LAW and other PRE LAB HELP
  4159. Ideal gas law and Composition
  4160. Chemistry: Significant Figures and Addition
  4161. Dipole/Induce Dipole and Induce-Dipole/Induce-Dipole
  4162. Calculating free energy from Ksp
  4163. Salt Production
  4164. Phenol dissociation
  4165. Finding shortest distance in bcc
  4166. Why would smaller seeds be more sensitive to saline water than larger seeds?
  4167. First Order Decomposition -> % of compound. Please help!!!
  4168. hydrogen bonding with NH3 plz.help.ASAP!
  4169. ATP, Phosphate
  4170. stomatal density between monocot and dicot
  4171. why aren't cell potentials multiplied by coefficients?
  4172. Quatum mechanics basic theory questions
  4173. Human Genetics
  4174. Thermochemistry Problem
  4175. Theoretical Yield, Molar Mass, and Percent Yield
  4176. Is water a solvent in this problem?
  4177. How to find density of a compund
  4178. dissolving equation(simple)
  4179. If life could arise from non life billions of yrs ago could that happen today?
  4180. Calculate heat lost or gained?
  4181. If given a device to lift a large mass, would you use a hydraulic/pneumatic fluid?
  4182. Do larger seeds need less water to germinate?
  4183. Chemistry The Atomic Mass of M
  4184. Lack of Lewis Catalyst for Bromination (Halogenation)
  4185. aqueous solution
  4186. Thermochemistry : % Mass Question
  4187. calculating the [H+] and pH of a lactic acid solution
  4188. which one will give a hydrogen..
  4189. Chemistry:the d block. equations.
  4190. Blood Alcohol Level?
  4191. Calculating Ksp from Delta H
  4192. chemical equilibrium
  4193. Stoichiometry/Limiting Reagents
  4194. Organic Chem: Benedict's test and acids - false positives?
  4195. Bonds: Polar Covalent
  4196. Equilbrium questions (chem)
  4197. Need Help! About resonance
  4198. question about a bunsen burner lab?!
  4199. Chem/Precalc Problem
  4200. Stoichiometry Help?
  4201. Kinetics
  4202. Aspartame
  4203. Take-home free response question on plants
  4204. Matches combustion formula
  4205. Left, Right or Double headed arrow?
  4206. Endothermically dissociating compounds ?
  4207. Chemistry: Finding a temperature change using a temperature/gram ratio
  4208. Minimum Pressure applied by reverse osmosis?
  4209. Chemistry. Effusion
  4210. Burining Candle/oygen
  4211. Dilution and moles
  4212. CHEM - Uranium isotope relative abundance at diff times
  4213. Chemical equilibrium
  4214. Writing net ionic equations...?
  4215. what would be the good method and solvent to purify biphenyl?
  4216. What is the differences between hydrolysis and hydration?
  4217. Brain Cells and Energy
  4218. basicity of histamine (chemistry)
  4219. Size of epithelia cells
  4220. Determining the quantity in moles of the gas that remains unreacted...?
  4221. Balancing Chemical Equations.
  4222. Atomic orbitals
  4223. composition of metal alloy
  4224. Particle in a box
  4225. question regarding homeostasis in Daphnia
  4226. question regarding homeostasis in Daphnia
  4227. Molar enthalpy of combustion of magnesium
  4228. Formula of a mixed copper salt
  4229. How much energy does it take to cool and heat up water
  4230. lab doubt
  4231. dillution of a gas
  4232. amides
  4233. Equilibrium - Calculating Kp
  4234. Chemistry AP - Acids and bases
  4235. MC: Chemistry Ideal Gas vs Real Gas
  4236. Do plants destory auxin intentionally?
  4237. Biuret's Test on Eggwhite
  4238. Acid Gas Disposal
  4239. Chemistry Questions
  4240. Gibbs Free Energy help
  4241. Thermodynamics beginner's
  4242. how do you graph this?
  4243. Grade 9 Science Experiment Help!
  4244. Quantitative Analysis Course - Titration Problem
  4245. Mass flow control and ideal gas calculation
  4246. Mass of cluster question in astronomy
  4247. Maxwell's theory of Tm fact or science fiction
  4248. Huckel's rule for Aromaticity--what is n?
  4249. Explaination needed for Stoichiometric problem.. and is Al salt colorless?
  4250. Calculate Total Heat Capacity
  4251. Why would leaves in a K+ solution have more open stoma than leaves in a Na+ solution?
  4252. Please Help! Back titration!
  4253. Partial pressures and equilibrium question
  4254. Acid strengths
  4255. What mass must be added to raise concentration? Am I doing this right?
  4256. Chemistry Enthalpy Question
  4257. HELP!!!A problem on quantitative aspects of electrolysis
  4258. molarity question
  4259. who can do the summary for me i need it now
  4260. Thermal Decomposition of Carbonates
  4261. Gen Chem - Isomers in a complex ion
  4262. pH of solution from mixing four solutions
  4263. mol fraction as a concentration?
  4264. Equilibrium problems
  4265. Pressure above which graphite will spontaneously change into diamond
  4266. Theoretical max. pressure of a given quantity of water freezing to ice
  4267. Organic Chemistry Synthesis Question
  4268. Alcohols and an oxidazing agent
  4269. Calorimetry & Enthalpy
  4270. CO questions
  4271. Polymer Question
  4272. Purpose of ether in Grignard reagent preparation
  4273. Is transcription a subprocess of translation in protein synthesis?
  4274. Finding the number of atoms in 0.500 mol of Argon
  4275. Lineweaver-Burke and some peculiar results
  4276. Unable to understand why bases in DNA which make V-A-P codon in bacter
  4277. Competitive inhibitors (biochemistry)
  4278. Chemical Equilibrium, solubility
  4279. easy percentage prob (for pro) hahah
  4280. Reaction of an aromatic arene test
  4281. Hexane's solubility in crude oil
  4282. 1D Particle in a box - locations at set probability
  4283. chemistry- electronegativity and bonding
  4284. Sodium Phosphate and Ammonium Molybdate reaction
  4285. Iron(III) Chloride and Potassium Thiocyanate reaction
  4286. Having trouble plotting this set of data - please help.
  4287. Chemistry - Entropy Changes in Physical Processes
  4288. Redox Titration, Iodine
  4289. Enthalpy of Ionization
  4290. A question on determine the rate of formation (chemistry)
  4291. Illustrate Hydrogen Bonding: Amino Acids
  4292. Reducing Agents and their relative strengths
  4293. Quantitative chemistry
  4294. Equilibrium Problem; Senior High School Level
  4295. Dilution Calculation
  4296. Equilibrium Lab
  4297. Gravimetric Analysis, Volatilization
  4298. Metals extracted from Carbonate ores
  4299. Truncating numbers
  4300. Reactions that produce harmless gas
  4301. pH
  4302. Whats the difference between spontaneous fission and radioactive decay?
  4303. AMU & Mole
  4304. Understanding Equilibrium Constants With No Denominator
  4305. Fractional Saturation of Hemoglobin
  4306. hydroboration of alkenes
  4307. Difference between alpha-keto acid and keto acid
  4308. chemical clock and entropy
  4309. Molarity of Unknown and sodium hydroxide.
  4310. the resulting pH due to the mixing of four solutions
  4311. Rate of disappearance "Answer check"
  4312. Rate constant "answer check"
  4313. Supernova Questions
  4314. Why does water volume increase when heated?
  4315. [Chemistry] Determine the concentration of h2o2 by redox titration!
  4316. Universal Gas constant
  4317. Universal Gas constant R
  4318. Water Quality Index equation and math help!!!
  4319. Difference in smooth and skeletal muscle cell organization?
  4320. Spectrum and energies
  4321. Question about Cells and Cell Channels
  4322. Empirical Formula of a Compound with only percentages given
  4323. Number of atoms reacting with a gas
  4324. [Chem] Net ionic equations
  4325. gold mining
  4326. Organic Naming
  4327. Atomic energy levels
  4328. pH problem
  4329. Chemistry Temperature Problem
  4330. Moles of ions
  4331. Understanding Acids What is the relationship between Ka and Kw?
  4332. calculation of glomerular filtration pressure??
  4333. Strong acid mneumonic
  4334. oxidation numbers for each element
  4335. acids and bases
  4336. Azeotropic distillation Please help...final coming up!
  4337. Bond Energies
  4338. autoionization of water
  4339. de Broglie wavelength of an electron
  4340. Help with Chem ?
  4341. Urgent need Help on Chem...... (average velocity, Thermochemistry, ionization energy)
  4342. Chemical reaction equation
  4343. Help with Chem- Azeotropic Distillation
  4344. Measure the relation between the current of a circuit and the heating effect produced
  4345. Chemistry freezing point and determination of molecular formula
  4346. reaction question..
  4347. atomic mass question..
  4348. Heat of Combustion
  4349. Help with high school chemistry~
  4350. Finding First Order Rxn Rate Constant
  4351. empiric formula question..
  4352. Check Concentration Calculation (Very Wordy As For Coursework)
  4353. NaHCO3 as an acid as a base
  4354. PH of nitric oxide solution
  4355. Solubility of Aniline and Acetanilide in aqueous HCl?
  4356. Mechanism for reaction of C6H5NH3 with NaOH?
  4357. What exactly is heat of combustion? How would I calculate it?
  4358. chem-highest melting point
  4359. Gravimetric analysis
  4360. need help, i think
  4361. real quick question
  4362. AP Biology Plant Questions
  4363. astronomy - rotation period of planet and wind speeds
  4364. thermochem quest (wondering if given enough info)
  4365. worked gas prob with my anwer +correct answer
  4366. concentration problem-with answer
  4367. Question regarding particles and wavelength
  4368. basic organic chem q's
  4369. heat capacity question
  4370. Physical Chemistry question
  4371. Finding ΔG and K for a given redox reaction
  4372. equilibrium pressure of a gaseous system
  4373. How do i determine the inter and intra molecular forces of these molecules?
  4374. How do you balance this chemical equation?
  4375. intramolecular interconversion
  4376. Alcohol Property Trends
  4377. CHEM Equilibrium constant help ASAP!
  4378. Acids and Bases-(salt solutions)
  4379. How do I prepare this solution? Dilution? CV=CV?
  4380. Ionisation Energy
  4381. "Plating" Metal - Cathode or Anode?
  4382. stoichiometry--hellp please!!
  4383. Anyone distinguish "average velocity" and "instantaneous velocity" please ?
  4384. Conversions: How do I get the moles of HCl from the volume of 1.0 M HCl?
  4385. stoichiometry. Please help . Thanks!!
  4386. What would happen if an electrolyte conducts both ions and electrons?
  4387. help with a quantum chemistry problem
  4388. Please Check my working
  4389. What can this crystal be???
  4390. Nuclear chemistry reaction question
  4391. Vapor Pressure Help
  4392. Energy transformation Chain
  4393. Electron transition question
  4394. Organic Nomenclature - Benzenes
  4395. Question about Compound Notation
  4396. Pressure equilibrium/Gibbs free energy question
  4397. Electrotaxis? Paramecium-electricity-migration.
  4398. Very Difficult Chemistry Problem...
  4399. Nernst Equation
  4400. The standard free Gibbs energy equation
  4401. Buffer/Ph/titration problem
  4402. Molecular structure and analysis method
  4403. Equilibrium Pressure
  4404. ksp and pH
  4405. Please someone help me answers this questions im desperate
  4406. Important Question about RNA processing
  4407. Help w/ Gravimetric Anaylsis of Mercury Oxide
  4408. Comparison of C-H bond energy
  4409. Please someone help me
  4410. Please help me on my hw problem. i need to submit it by 11pm 04/19/09 (tomorrow)
  4411. buffer solution
  4412. Finding Pressure when given change in temperature
  4413. Find the equilibrium concentration...
  4414. Physical Chemistry Help!!!!
  4415. Pressure and concentration equilibria
  4416. Biology: Plasmid
  4417. Chemsitry - Moles Consumed
  4418. Chemistry: Lead Tartrate.
  4419. Chemistry 12 - weak acid/electrical conductivity (2 questions)
  4420. Finding new Pressure in cylinder when compressed
  4421. Predict the products of electrolysis
  4422. Solid/liquid Fats at ambient temperatures
  4423. chemisrty isomer question
  4424. Enthalpy
  4425. Titration help
  4426. Colloidal chemistry - interpretation of lecture notes
  4427. Ternary phase diagram
  4428. Oil-water curvature
  4429. Adsorption isotherm
  4430. question about getting the pH...
  4431. Organic Chemistry Mechanism Question
  4432. thermochemistry(Q)
  4433. Nomenclature question
  4434. Are my Redox Calculations correct?
  4435. Nuclear Chemistry: Kinetics of Radioactive Decay and Radioactive Dating
  4436. General Chemistry - Intermolecular Forces
  4437. thermochemistry 2
  4438. General Chemistry (Hardness)
  4439. Oxidation Numbers
  4440. Voltaic Cells
  4441. Solubility Problem - Involves Addition of Another Ion
  4442. Urgent: Hybridisation
  4443. Chemistry = Freezing Point & Molality
  4444. Organic Chemistry: Reactivity levels
  4445. From a Chemistry Textbook
  4446. chemistry- boiling point
  4447. chemistry- ΔH
  4448. Entropy and Free Energy
  4449. Coulometric vitamin C Titration, pretty basic
  4450. corrosion experiment
  4451. temperature combination, Homework (HELP)
  4452. Pressure ratio problem
  4453. Resonance for deprotonated oxazolinium ion
  4454. thermodynamics problem?
  4455. Static Headspace analysis
  4456. Colligative properties: vapor pressure with an electrolyte
  4457. Sedimentation time
  4458. Surfactant
  4459. spin
  4460. Solution check for pH of Strong Acid and Strong Base
  4461. Dilutions question
  4462. Gen Chem, Factors Affecting Solubility
  4463. Genetics - primer design
  4464. where does 1u = 1.661x10^-24g come from?
  4465. Radioactivity problem
  4466. Help with undstanding Metabolism?
  4467. Oiling out of solution
  4468. Are these two phrases the same . I am not sure what it is asking for.
  4469. Interference Wedge Problem - Analytical Chemistry&Instrumental Analysis
  4470. carbonate ion 2- charge, how?
  4471. Heavy metal contamination of fish
  4472. Chemical thermodynamics, heat of formation and heat of atomization
  4473. Question about chromate-dichromate equilibrium?
  4474. Lipid bilayer and energetic favourabilityness...
  4475. Unit conversion
  4476. Need help understanding KOH + Al2O3 reaction