Biology and Chemistry Homework Help Forum

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Threads

Biology How Do You Solve Genetics Probability Problems?

  • Intr3pid
  • · Replies 5 ·
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5

Balancing redox reactions and calculating Mg-Ag voltaic cell properties

  • mikesown
  • · Replies 1 ·
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1

Heat needed to warm and vaporize 23 g ethanol sample

  • GLprincess02
  • · Replies 1 ·
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1

How to Calculate the Heat of Combustion for C2H6?

  • RPN
  • · Replies 4 ·
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4

What are the key factors to consider in the preparation of bromine gas?

  • jamesyboy1990
  • · Replies 2 ·
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2

Calculating the theoretical net charge

  • researcher87
  • · Replies 1 ·
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1

Calculate Resulting Pressure of Mixed Gases in 12L Vessel

  • oceanflavored
  • · Replies 1 ·
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1
  • Poll Poll

Is the Reaction in Equilibrium Given Kc and Q Values?

  • oceanflavored
  • · Replies 3 ·
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3

Equilibrium constant reaction problem

  • ahoy hoy
  • · Replies 3 ·
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3

How Do Electronic Components Function and Operate?

  • khalid57
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6
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1
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1

Which process has the greatest decrease in entropy and why?

  • katrina007
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3

Chemistry - Equivalence Point for Weak Base and Strong Acid Titration

  • katrina007
  • · Replies 11 ·
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11

How Do Changes in Temperature and Phase Affect Enthalpy and Entropy?

  • katrina007
  • · Replies 21 ·
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21

How Do I Build a Water Electrolysis Setup?

  • Gadget_Wizard
  • · Replies 2 ·
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2

Population Allele Frequency and Heterozygotes in H-W Equilibrium

  • komal12
  • · Replies 2 ·
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2

Formation of [Co(H2O)6]2+ Complex and NH4SCN Precipitate in Solution

  • shannon3
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3

Does francium react most violently with chlorine?

  • ritwik06
  • · Replies 8 ·
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8

Effects of OH- Increase on Alkalinity, Acidity, and pH

  • n108
  • · Replies 3 ·
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3

Chem 2, Cell diagrams for oxidation/reduction reactions

  • CausativeAgent
  • · Replies 3 ·
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3

Are There Any Geometric or Optical Isomers in Ni(OH)2Cl(NH3)3?

  • amcavoy
  • · Replies 1 ·
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1

Why does the precipitate dissolve, reappear, and then dissolve again?

  • billabonger77
  • · Replies 2 ·
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2

Calculating K_a from ΔE° for HBrO Reaction

  • amcavoy
  • · Replies 2 ·
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2

Biology: Solutions equilibrium

  • future_vet
  • · Replies 4 ·
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4

Solving Electrochemistry Lab with Al+3, Cu+2, Fe+3, Zn+2, KNO3

  • mikesown
  • · Replies 1 ·
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1

Writing half-reactions for galvanic cells with only cations

  • mikesown
  • · Replies 1 ·
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1

Why does Al(OH)3 precipitate dissolve with NaOH but not NH4OH?

  • ChemDunce
  • · Replies 2 ·
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2

What is the shebang line in a Perl CGI script?

  • Math Is Hard
  • · Replies 3 ·
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3

How Do You Balance Redox Reaction Equations?

  • southerngirl5390
  • · Replies 10 ·
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10

How Do Satellites Stay in Space?

  • u83rn00b
  • · Replies 2 ·
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2
  • Poll Poll

Net Ionic Equations: How to Write and Balance Them

  • oceanflavored
  • · Replies 4 ·
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4

How to calculate lattice energy using the Born Haber cycle

  • President Mercury
  • · Replies 2 ·
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2

New to Spin Angular Momentum? Ask Here

  • i.mehrzad
  • · Replies 1 ·
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1

Find the Concentration of Cu2+ in Unknown Solution

  • jesuslovesu
  • · Replies 1 ·
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1

Solving Chemistry Questions: Mercury (II) Sulfide HgS

  • heartsxxskulls
  • · Replies 1 ·
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1

How Do You Calculate the Hydrolysis Constant from pH?

  • odonneaj
  • · Replies 1 ·
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1

Designing a titration experiment to compare antacid effectiveness

  • dbny116
  • · Replies 7 ·
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7

Determining Iron Oxide Composition in a Sample using Redox Titration

  • steven10137
  • · Replies 3 ·
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3

Lattice Energy and the Born Haber Cycle

  • President Mercury
  • · Replies 2 ·
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2

I in assigning R/S stereochemistyr

  • future_vet
  • · Replies 1 ·
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1

Isopropyl Alcohol Electron Dot Diagram

  • chrisjj
  • · Replies 2 ·
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2

(very) nonstandard reduction potential

  • kankerfist
  • · Replies 2 ·
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2

Why do period 3 elements have greater electron affinity than period 2?

  • ritwik06
  • · Replies 5 ·
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5

What Are the Colors of Co^{3+} Complex Ions?

  • Gott_ist_tot
  • · Replies 4 ·
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4

Why do we regain energy quickly after a workout?

  • Mallignamius
  • · Replies 2 ·
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2

How do I calculate CO2 output from a compressed air tank with 5% CO2?

  • wils0645
  • · Replies 2 ·
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2

Finding empirical formula from barium sulfate precipitate and titration data

  • steven10137
  • · Replies 10 ·
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10

How Long Until Only 10% of a Radioisotope Remains?

  • sin_city_stunner
  • · Replies 4 ·
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4

DNA family tree: who is the grandmother, mother, and daughter?

  • leoflc
  • · Replies 1 ·
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1

Finding moles of products from CH4 combustion mass flow rates

  • Jacob87411
  • · Replies 5 ·
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5

Solving Redox Equations Involving Cl2 in Basic Solution

  • jesuslovesu
  • · Replies 1 ·
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1

Questions on electrochemical cells using Zn, Cu

  • Leesy007
  • · Replies 7 ·
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7

What Is the Frequency of the PKU Allele in European Populations?

  • t_n_p
  • · Replies 1 ·
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1

Dilute, Unsaturated, Saturated and Supersaturated solutions

  • GLprincess02
  • · Replies 2 ·
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2

Understanding Hess's Law: Calculating Heat of Reaction

  • bobbluecow
  • · Replies 1 ·
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1

Calculating Kb: Ph 0.3mol/l Weak Base, 10.66

  • humaders99
  • · Replies 1 ·
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1

How Does Adding Water Change the Molarity of a Solution?

  • oceanflavored
  • · Replies 2 ·
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2

Find pH of solutions A and C in weak acid-base titration

  • jacker2011
  • · Replies 2 ·
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2

Nuclear Chemistry: Solving Ionizing Intensity

  • SamTsui86
  • · Replies 1 ·
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1

Chemistry pH Problem 0.02 moles HOAc

  • FlipStyle1308
  • · Replies 6 ·
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6

Is heat required for these processes to occur?

  • n108
  • · Replies 2 ·
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2

Does Wrapping Frozen Meat in Fur Really Thaw It Faster?

  • just...DVL
  • · Replies 5 ·
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5

Which is NOT a reason why water is a good solvent

  • oceanflavored
  • · Replies 2 ·
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2

Finding Functional Group Names for Orgo II Exam Prep

  • vincikai
  • · Replies 1 ·
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1

Golf ball acceleration and Newton's third law

  • oceanflavored
  • · Replies 1 ·
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1

Finding pH and pKb in weak acid-base titrations

  • Blink691
  • · Replies 3 ·
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3

Chemistry Normalizing molecular speed probabiliy distribution

  • babbagee
  • · Replies 1 ·
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1

Ideas for a Quick Physical Chemistry project

  • GTdan
  • · Replies 3 ·
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3

Chemistry Calculating molecular mass of oxalic acid (diprotic acid) using only given #s?

  • h20h
  • · Replies 1 ·
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1

Significant digits in intermediate answers

  • purpledonkey
  • · Replies 1 ·
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1

How to Calculate the Mass of a ^{14}N Atom?

  • WolfOfTheSteps
  • · Replies 6 ·
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6

Organic Chem - Synthesis of alcohols

  • purpledonkey
  • · Replies 3 ·
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3
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1

Finding the limiting reagent in 50g of 0.5M HCl and 0.5M NaOH

  • kenon
  • · Replies 3 ·
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3

Zero-order polymer decomposition for twice-daily slow-release drug design

  • pengko
  • · Replies 11 ·
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11

Finding Ksp of PbI2 from absorbance data and equilibrium concentrations

  • rachelle
  • · Replies 5 ·
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5

Calculate pH of Buffer Solution After HCl Added

  • lizzyb
  • · Replies 1 ·
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1

[Chemistry] Calculation of Pt potential

  • jkh4
  • · Replies 1 ·
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1

Choosing the Best Indicator for a Titration of HNO2 with NaOH

  • h20h
  • · Replies 7 ·
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7

Calculating pH Change in C6H5COOH Solution with KOH Addition

  • lizzyb
  • · Replies 9 ·
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9
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2
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3

Increase Methanol Yield from CO + H2 Reaction

  • L²Cc
  • · Replies 1 ·
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1

Need a little push in the right direction

  • Dao Tuat
  • · Replies 2 ·
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2
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8

Calculate the pH of Buffer Solution with Ka=1.34x10^-5

  • lizzyb
  • · Replies 2 ·
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2

How Much 0.6M HNO3 Is Needed to Neutralize 28.55 mL of 0.45M KOH?

  • h20h
  • · Replies 2 ·
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2
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1

Chemical Formula Hydrate Lab

  • Sarah32
  • · Replies 1 ·
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1

Le Chatelier shifts when SO2 is added, SO3 removed, vessel shrinks

  • briman
  • · Replies 3 ·
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3

What Happens to pH When H3PO4 is Mixed with NaOH?

  • CaptainZappo
  • · Replies 2 ·
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2

Molar enthalpy change for NaHCO₃ decomposition using Hess's law

  • Tomtom
  • · Replies 2 ·
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2

Formula for enthalpy change and molar enthalpy change

  • Batman_109
  • · Replies 2 ·
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2

Rotation Kinetic Energy of Two Helicopter Blades

  • teddygrams
  • · Replies 1 ·
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1

Can Equilibrium Be Achieved at 1 atm for N_2, H_2, and NH_3?

  • breez
  • · Replies 1 ·
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1
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1

Number of Chromosomes During Mitosis in Humans

  • togetherforever
  • · Replies 1 ·
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1

Calculate pH of Citric Acid at Various Concentrations

  • [-Log10H+]
  • · Replies 9 ·
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9

Experimental Procedure for Calculating Ksp of PbCl2 at Lab Temperature

  • humaders99
  • · Replies 4 ·
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4