Biology and Chemistry Homework Help Forum

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Calculating Ka and Kb values from estimated pH values

  • TrueStar
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4

What Are the Best Online Resources to Study for a Chemistry Test?

  • lj19
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4

Acid-Base Chemistry in Aqueous Solutions

  • User Name
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1

Solve Beer's Law Problem: Fe2+ Spectral Analysis

  • Lancelot59
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2

Slope of the line: Wheat germ extract

  • Thrax
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5

Understanding Significant Figures in Chemistry: A Beginner's Guide

  • lj19
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7

What is the Mass of 3.5 Cubic Meters of Water at 25°C?

  • r-soy
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1

How Do You Determine Paint Thickness from Volume and Area?

  • r-soy
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1

Entropy change for isothermal expansion of a perfect gas

  • Pete_01
  • · Replies 4 ·
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4

Find Volume of 30.0 acre-ft Water in SI Units

  • r-soy
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1

Calculating Hydrogen Peroxide Mass Percent in Redox Titration

  • ylperon
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2

How Does Adding Nitric Acid Affect the pH of a Carbonate Buffer Solution?

  • unfloopy
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12

Calculate the molar concentration of substrate

  • Thrax
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2

Calculating pH using Ka: Equal Concentrations of HB and B-

  • jpd5184
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2

Calculation of water of crystallization

  • lolbits
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3

Learn VSEPR Theory: Carbon & Oxygen Bonding

  • Maz88
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2

Why Aren't We Crushed by the Massive Amount of Air Above Us?

  • pivoxa15
  • · Replies 33 ·
2
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33

Calculating Molar Concentration for Beers Law Plot

  • jpd5184
  • · Replies 10 ·
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10

How Does pH Affect Enzyme Activity in Starch-Iodine Reactions?

  • originalr
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2
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1

How Does the Dieterici Equation of State Compare to Reality?

  • Aeon
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1

Penetrating abilities for alpha,beta,gamma

  • JohnSmith1995
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1

Chemistry How many moles of C atoms are there in 0.47 mole of Arginine

  • swatmedic05
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1

What latitude was the person flying along on September 21 at sunset?

  • B Robison
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1

Calculating HCO3- in Blood Sample w/ 2.6 X 10^-2 mol/L CO2

  • lha08
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1

Isobaric heating to find volume and temperature

  • marcas3
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1

How Many Moles of CO2 Are Produced in an Effervescent Antacid Lab?

  • Chemcrazy1
  • · Replies 13 ·
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13

The combustion of 0.316g of benzoic acid in the same calorimeter

  • zorro
  • · Replies 3 ·
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3
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2

How Do You Calculate Uncertainty in Chemical Molarity?

  • flutterfly
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1

Calculate the flow rate of the etching solution

  • Pr0x1mo
  • · Replies 3 ·
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3

What Is the Name of This Organic Compound?

  • ahazen
  • · Replies 2 ·
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2

Range of the middle 75% of the data

  • Nikki10
  • · Replies 8 ·
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8

How to find empirical formula from combustion equation

  • RockenNS42
  • · Replies 2 ·
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2

Balancing equation for creation of Potassium benzoate

  • cp-svalbard
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1

Can the Nature of Reactants Predict Reaction Rates?

  • mballaz
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1
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1
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2
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8

Organic II - Reaction of Aromatic Compounds

  • StefanoFIU
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2

Concentration of an original solution

  • apbuiii
  • · Replies 3 ·
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3

Stereogenic centre of 3-methylcyclohexanone

  • shaurya
  • · Replies 2 ·
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2

The pKa values for the three ionizable groups on tyrosine are pKa

  • lha08
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1

Calculate Selenium Conc. in Phoenix Tap Water (mg/L)

  • apbuiii
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2

Enthelpy of a reaction question

  • wintermute++
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1

Understanding TeCl4 Lewis Diagram: What Causes the Lone Pair?

  • ultimatebusta
  • · Replies 1 ·
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1

How Can You Tackle Environmental Chemistry Questions Effectively?

  • Priscilla
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3

Are these cis/trans isomers? Why or why

  • Westlund2
  • · Replies 3 ·
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3

Solving Sn-Pb Phase Diagram Questions

  • soul
  • · Replies 7 ·
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7

How Do You Calculate the Empirical Formula of Magnesium Nitride?

  • thomas49th
  • · Replies 3 ·
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3

Calorimetry Problem: Final Temp of Al+Water

  • flutterfly
  • · Replies 1 ·
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1

How Deep Would the Water Ice Layer Be on the Moon?

  • GOsuchessplayer
  • · Replies 1 ·
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1
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3

Are all neutralization reactions exothermic?

  • elasticities
  • · Replies 3 ·
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3

How to Determine Ka of Bromcresol Green from Absorbance Values?

  • jpd5184
  • · Replies 7 ·
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7

Solve Thermo Probs: Part A of PV=mRT w/ Figure

  • temaire
  • · Replies 4 ·
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4

Why Do Stronger Bonds Mean Lower Energy?

  • MotoPayton
  • · Replies 9 ·
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9

What Role Does Seawater and HCl Play in Electrochemical Corrosion?

  • Alvine Alvin
  • · Replies 3 ·
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3

Heat Capacity of Bomb Calorimeter: Questions & Answers

  • kk727
  • · Replies 5 ·
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5

Redox Reaction of Ascorbic Acid using IO3

  • DavetheMD
  • · Replies 5 ·
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5

Hemodynamics Homework Help, Works shown

  • johnq2k7
  • · Replies 5 ·
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5

Equilibrium constant (K) Question problem

  • Danny523
  • · Replies 1 ·
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1

Mg + HCl Reaction: Quantifying Amounts

  • shineethings
  • · Replies 1 ·
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1

Is a first order reaction always slower than a second order reaction

  • lalaland432
  • · Replies 3 ·
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3

Physical Chemistry - vapor pressures

  • belltos
  • · Replies 3 ·
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3

Organic Chemistry - Polymerization of Propene to Polypropylene

  • AsuraSky
  • · Replies 4 ·
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4

What is the Molar Ratio for Dissolving Aluminum with Sulfuric Acid?

  • MorQQ
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1
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1

How Do You Calculate the Rate of Reaction in an Enzyme Activity Lab?

  • GreenPrint
  • · Replies 2 ·
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2

Physical Chemistry- Maxwell Boltzmann Distribution

  • sdoyle1
  • · Replies 1 ·
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1

Reactions of NH3 & CuSO4 + H2SO4 & Cu(NH3)4+2

  • Draksis314
  • · Replies 3 ·
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3

Back Titration Of Metal Carbonate

  • Lancelot59
  • · Replies 4 ·
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4

How Much Does Earth's Atmosphere Weigh?

  • chem1guy
  • · Replies 8 ·
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8

Chemistry Find the molecular mass of acid in acid base neutralization

  • jessica.so
  • · Replies 6 ·
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6

Thermodynamics - Find initial pressure (given Temperatures)

  • physics_197
  • · Replies 6 ·
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6

What is the Fraction of Methane in a CH4 and C2H6 Mixture After Combustion?

  • Skatermoon
  • · Replies 2 ·
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2

Finding the excess after the reaction is complete (chem 101)

  • legendarium
  • · Replies 6 ·
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6

Finding limited reactant (Chem 101)

  • legendarium
  • · Replies 6 ·
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6

More Stable Electron Configuration For Copper

  • MysticDude
  • · Replies 2 ·
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2

How Does the Buffering Action of Weak Acids Change During Titration?

  • lha08
  • · Replies 2 ·
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2

Physical Chemistry-Gas Laws (Find R and M)

  • bluegreen
  • · Replies 3 ·
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3

What Molarity of Ca2+ Ions Was Required?

  • Turquoise
  • · Replies 1 ·
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1

Calculating mass of the atmosphere

  • JerzeyDevil
  • · Replies 1 ·
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1

Solve AgCl Solubility w/ Ksp & Kf: Find Min NH3 for 0.1 mol AgCl in 1L

  • zorro
  • · Replies 8 ·
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8

Wavelength, emission spectrum, electron transitions

  • FsLiu
  • · Replies 2 ·
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2

Solving Enthelpy Problem: ΔH = 12.9 kJ

  • jools111
  • · Replies 2 ·
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2

Protein Alpha Helix: Causes and Function

  • lha08
  • · Replies 3 ·
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3

Calculating pH for Mg(OH)2 Precipitation 0.1M Mg2+

  • zorro
  • · Replies 2 ·
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2

Net Ionic Equations: NaCl + AgNO3 Reaction

  • b.barkey
  • · Replies 7 ·
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7

Protein Stability: Folded or Unfolded?

  • lha08
  • · Replies 1 ·
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1

Calculating alkalinity and expressing it in as CaCO3

  • Jim4592
  • · Replies 2 ·
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2

How to calculate pH of two weak acids

  • 100631
  • · Replies 1 ·
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1

Having trouble coming up with this equation

  • black_hole
  • · Replies 1 ·
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1

How Do Factors Affect Liquid Vapour Pressure and Substance Volatility?

  • Referos
  • · Replies 1 ·
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1

Amino Acid Titration: Why COOH H First?

  • lha08
  • · Replies 3 ·
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3

Hess's Law - Thermochemical Equations

  • kevinzak
  • · Replies 2 ·
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2

Simple Year 8 Homework - Please improve my answer

  • Science10
  • · Replies 2 ·
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2

Where Does e^(2*pi*i) Originate?

  • sirwalle
  • · Replies 11 ·
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11

Chemistry How Many Moles of ATP Can Be Produced from One Mole of Glucose?

  • grumpyasian
  • · Replies 3 ·
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3

Chemistry How many moles of NH3 in the supplied solution0.2 M NH3 in 2 M Nh4NO3

  • everscern
  • · Replies 1 ·
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1