Biology and Chemistry Homework Help Forum

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4

H NMR distinguishing ortho, meta, and para ethyl benzaldehyde

  • samadiqbal
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2

Understanding Melting Points for the Periodic Table

  • komal12
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3

How Can You Distinguish Between Propanone and Propanal?

  • nathaniell
  • · Replies 5 ·
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5

Calculating mass of atoms and converting between moles and molecules

  • sinandcity
  • · Replies 5 ·
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5

Calculate K at 100 C for Reaction of Ethanol and Acetic Acid

  • Orbit1212
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1

Finding Literature Heat Capacity Values

  • thisbmagic32
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2

Biology How Many Gametes and Chromosomes Result from Human Meiosis?

  • t_n_p
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1

Cubic equation for weak acid hydronium

  • symbolipoint
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3

Crystal Field Model: True/False Questions for Octahedral Complex Ions

  • SamTsui86
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1

Determining Minimum NaOH Amount for 0.4M Acetic Acid Buffer Capacity

  • apchemstudent
  • · Replies 6 ·
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6

Acid/Base Equilibria (hard, i think).

  • jajahaha
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2

Determining Formula of Barium Hydrate with Titration

  • needhelpinchem
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3

Will CO Convert to CO2 Quickly in High Temperatures?

  • afcwestwarrior
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4

Blood pH: Maintaining Normal 7.35-7.45 Range

  • afcwestwarrior
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1

Optimum temperature and pressure for CO oxidation and NO decomposition

  • afcwestwarrior
  • · Replies 2 ·
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2

Chemistry How Do You Calculate Kp for the Formation of Ammonia from Nitrogen and Hydrogen?

  • CausativeAgent
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1

Blood buffer system: calculating CO2 and H+ concentration changes

  • afcwestwarrior
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1

Distribution Coefficient Fun for all ages

  • paperclip
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2

Why must the hydrogen in E2 reactions be anti- and planar to the leaving group?

  • Ahmed Abdullah
  • · Replies 4 ·
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4

Bond where electrons are being transferred?

  • ProblemSets
  • · Replies 4 ·
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4

Which Structure Has The Highest Melting Point?

  • ProblemSets
  • · Replies 8 ·
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8

Checking answers on molecular bonding and intermolecular forces

  • ProblemSets
  • · Replies 1 ·
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1

What's a good catalyst for the reaction

  • Werg22
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1

Will adding Ar(g) shift the equilibrium in 2NOCl(g) <--> 2NO(g) + Cl2(g)?

  • bobbarkernar
  • · Replies 1 ·
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1

Finding grams of hydrogen gas using the ideal gas law

  • n108
  • · Replies 1 ·
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1

What Is the Product of Treating 1,1,4,4-Tetra D Cyclohexane with SO2Cl2?

  • Sourabh N
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3

What species does 2,2-diphenylethanal form in aqueous base?

  • Sourabh N
  • · Replies 11 ·
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11

Solve a Simple pH Problem: HCl + NaOH → H2O + NaCl

  • mikesown
  • · Replies 4 ·
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4
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2

What is the partial pressure of the NH3

  • DallasMavs
  • · Replies 4 ·
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4

Enthalpy Change in Dissolving Ammonium Nitrate in Water

  • louise82
  • · Replies 9 ·
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9

Drugs and Medecine - where can I study from?

  • Werg22
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1

Standard Reduction Potentials of 1/2 Cells

  • Fusilli_Jerry89
  • · Replies 2 ·
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2

I with calculating the pressure inside my hovercraft.

  • i__fate__i
  • · Replies 9 ·
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9

How to Calculate the Molarity of 37% HCl?

  • violeta
  • · Replies 3 ·
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3

What Food Can I Bring to Prevent Osteoporosis?

  • BayernBlues
  • · Replies 1 ·
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1

A simple unit conversion problem that I don't get.

  • JerusalemLuver
  • · Replies 3 ·
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3

Chemistry Lewis Structure of These Molecules?

  • Doc_Immortalx
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2

Why does higher reactant concentration increase precipitation temperature?

  • ctaconquer
  • · Replies 1 ·
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1

Chemistry - Dissolving Precipitates

  • Jeann25
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1

How Does pH Affect the Solubility of Mg(OH)2?

  • jesuslovesu
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1
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1

Higher Chemical Concentration = Higher Temperature of Precipitation. Why?

  • soggybread
  • · Replies 4 ·
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4

Final mass and entropy generation for insulated tank filling then cooling

  • goblue88888
  • · Replies 3 ·
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3

Gibb's free energy (very simple one)

  • pari786
  • · Replies 1 ·
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1

Standard Rf Values - Biology (Photosynthesis)

  • Christina-
  • · Replies 1 ·
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1

Why Isn't C5 a Crystal Point Group?

  • WolfOfTheSteps
  • · Replies 4 ·
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4
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4

Calculating pH After Adding NaOH to NaC3H5O2 Solution

  • Doodan
  • · Replies 1 ·
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1

Molarity of a solution of silver perchlorate

  • n108
  • · Replies 7 ·
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7

Calculating pH of Buffer Solution with HCl Addition

  • pari786
  • · Replies 5 ·
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5

Using oxalic acid as a primary standard

  • danago
  • · Replies 8 ·
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8

Determine Ka1 and Ka2 of Diprotic Acid: Titration Problem

  • psycovic23
  • · Replies 2 ·
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2

Why does B-H break instead of O-B in sodium borohydride reduction?

  • twt
  • · Replies 2 ·
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2

Difference between enthalpy change and molar enthalpy change

  • cookiefairy
  • · Replies 1 ·
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1

Conditions for rusting on iron nails

  • ~julz~
  • · Replies 6 ·
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6

Questions about Diels Alder reaction

  • jkh4
  • · Replies 1 ·
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1

Organic Nomenclature and Simple Reactions

  • Shay10825
  • · Replies 9 ·
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9

Are These Answers Correct for Chemical Equilibrium Questions?

  • minus
  • · Replies 3 ·
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3

How many mL of 0.700-M KOH neutralizes 235 mL of 0.350-M H2SO4?

  • ellaina
  • · Replies 7 ·
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7

What Is the Average Length of a DNA Strand Cut by a Restriction Enzyme?

  • BassMaster
  • · Replies 1 ·
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1

Calculate the formula weight for values of X

  • cyberdx16
  • · Replies 1 ·
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1
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3

How Many Half-Lives Equal a 1/8 Concentration Reduction?

  • pari786
  • · Replies 6 ·
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6

Preparing a buffer at pH 3.9 from acetic acid and NaOH

  • rls623
  • · Replies 4 ·
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4

How does temperature affect KNO3 solubility in water?

  • Turkish
  • · Replies 1 ·
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1

Factors Affecting Energy Gap in Aromatic Compounds

  • jkh4
  • · Replies 4 ·
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4
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1

Balancing the equation NO3 to NO2 + H2O

  • ladyvols
  • · Replies 1 ·
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1

Dehydration of 2-Butanol: Products and Abundance in E1 Reaction

  • joemannix
  • · Replies 2 ·
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2

SiC Production: What are the Products?

  • Rasputin
  • · Replies 3 ·
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3

Should rangers shoot a bear attacking a trespasser in a sanctuary?

  • adam15229
  • · Replies 6 ·
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6

Predicting Alkene Formation in 2-Butanol E1 Dehydration

  • jzq
  • · Replies 2 ·
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2

How can I freeze a gallon of water in 5 seconds?

  • Taiki_Kazuma
  • · Replies 19 ·
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19

How do you calculate age using half-life and fraction remaining?

  • alexi324
  • · Replies 1 ·
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1

Several questions about stoichiometry

  • Nyarka
  • · Replies 7 ·
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7

Advice on Writing an Extended Essay on Henna (Morocco)

  • L²Cc
  • · Replies 4 ·
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4

Can Protein Be Used for Energy in Glycolysis and the Krebs Cycle?

  • asdf54
  • · Replies 2 ·
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2

Mass of CO2 from combustion of 41 kg octane

  • JABEMT
  • · Replies 3 ·
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3

Quantum numbers for the three outermost electrons of arsenic

  • linuxux
  • · Replies 2 ·
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2

What is the Definition of Enthalpy and When Does It Change?

  • dontdisturbmycircles
  • · Replies 2 ·
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2

All Energy on Earth can be traced back to the Sun

  • Dr.J
  • · Replies 4 ·
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4

[Chemistry] How do you find the new concentration?

  • jkh4
  • · Replies 1 ·
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1
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26

Sulfuric Acid & Gold: Does it React?

  • haiha
  • · Replies 3 ·
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3

Who are the Scientists Behind Liver Research and Development?

  • natural
  • · Replies 5 ·
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5

Restriction enzyme reads a DNA strand containing nucleotide base pairs

  • BassMaster
  • · Replies 3 ·
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3

Resonance Structures of PO4 (3-)?

  • oceanflavored
  • · Replies 4 ·
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4

Identifying Polar and Nonpolar Molecules: ClO4-, H2S, SF6, PCl3

  • linuxux
  • · Replies 4 ·
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4
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1

Can someone check my Lewis dot diagrams?

  • linuxux
  • · Replies 5 ·
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5

Material Energy Balance / Thermodynamics Question

  • twiztidmxcn
  • · Replies 2 ·
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2

Chemistry How Are Molecular Biology Techniques Used to Diagnose Viral Infections?

  • charming86
  • · Replies 2 ·
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2

Significant Figures: Answer to 6.45 mol H2 Conversion

  • linuxux
  • · Replies 2 ·
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2

Creating a pH 6.7 Buffer Solution with Imidazole and C3H5N2Cl

  • ElectronicError
  • · Replies 3 ·
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3

How Do You Balance the Chemical Equation for Rusting Iron?

  • southerngirl5390
  • · Replies 2 ·
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2

Le Chatelier's principle with CrO4 and HCl

  • angel_eyez
  • · Replies 3 ·
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3
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6