Biology and Chemistry Homework Help Forum

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Threads

Lab design to measure enthalpy of fusion of ice at 0°C

  • RockenNS42
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1

Solving pH of an Aqueous Solution of Weak Acid HCOOH

  • geffman1
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3

Redox Question: Which is Best Reducing Agent?

  • geffman1
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3

Understanding Entropy and Free Energy in Chemical Reactions

  • MonsieurWise
  • · Replies 6 ·
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6

Why removing all UO2 affects equilibrium but removing some doesn't

  • lha08
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1

Molar Mass Calculation: Find (HOCH2CHOH)CH2O2 Mass

  • lha08
  • · Replies 4 ·
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4

Calculate Molarity/Mole Fraction of Acetone in 1.00 M Solution

  • lha08
  • · Replies 1 ·
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1

Chemical reactions in an industry research project

  • chemistryhelp
  • · Replies 3 ·
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3

How Do NADH and NADPH Differ in Metabolism?

  • cthor
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2

0.16c how fast would it take you to get 4 light years?

  • peron
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2

How many grams of chlorine form from 50g Ca(OCl)2 and 275mL HCl?

  • sahen
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3

Dissociation Constant of Weak Acids

  • lha08
  • · Replies 1 ·
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1

HI Cloud & 21cm Line: Calculate, Ratio & Luminosity

  • TFM
  • · Replies 15 ·
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15

Calculate the Percent Composition of an Herbicide from Analysis Data?

  • 6021023
  • · Replies 8 ·
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8

Aqueous and gaseous elements and compounds?

  • lha08
  • · Replies 2 ·
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2
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1

Calculating base ionization constant from a known pH and concentration

  • doggbAT
  • · Replies 3 ·
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3

Chemical thermodynamics, heat of formation and heat of atomization

  • neolayman
  • · Replies 2 ·
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2

How Do I Calculate the Correct Percent Composition of Oxygen in a Compound?

  • limofunder
  • · Replies 4 ·
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4

Effect of pH and salinity on corrosion of steel, aluminum and iron

  • prime-factor
  • · Replies 1 ·
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1

Traveling to the Nearest Star at .5c - How Long Does It Take

  • peron
  • · Replies 1 ·
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1

Finding pH of a buffer with .450 M HCN and .230 M KCN

  • pooker
  • · Replies 3 ·
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3

Anod Katod: Understanding Reduction and Oxidation in Electrochemical Reactions

  • EternityMech
  • · Replies 2 ·
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2

Packing efficiency of particles in solids-space lattices

  • mcandrewsr
  • · Replies 9 ·
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9
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7

What are the products of KOH reacting with ruby (Cr:Al2O3)?

  • Topher925
  • · Replies 2 ·
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2

Solve Dilution: 125 mL 8.00M CuCl2 to 50 mL 5.9 g CuCl2

  • FuturePA
  • · Replies 5 ·
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5

AP Chemistry Test FRQ: Balancing Equations

  • cadillac
  • · Replies 2 ·
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2

Finding normal boiling point from Clausius-Clapeyron equation

  • StephenDoty
  • · Replies 5 ·
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5

Finding pH given molarity and volume

  • KaceCC
  • · Replies 6 ·
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6

Determining Spontaneity in the Reaction COCl2(g) -> CO(g)+Cl2(g)

  • lha08
  • · Replies 4 ·
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4

AP Chemistry Test / Solubility Rules

  • cadillac
  • · Replies 4 ·
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4

Ingredient in aspirin is acetylsalicylic acid

  • lha08
  • · Replies 3 ·
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3

Ksp vs Ka: What's the difference and how does it relate to precipitation?

  • muffintop
  • · Replies 3 ·
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3

What is the charge on carbonate ion

  • sponsoredwalk
  • · Replies 13 ·
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13

Converting Fish/Liter to Fish/Square Meter

  • bprku
  • · Replies 10 ·
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10

How do I analyze a compound that oils out of solution?

  • ~christina~
  • · Replies 11 ·
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11

Why does HCl turn both chromate and dichromate orange?

  • HelloMotto
  • · Replies 1 ·
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1
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1

Are these two phrases the sameI am not sure what it is asking for.

  • squirt552
  • · Replies 1 ·
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1
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4

Where does 1u = 1.661x10^-24g come from?

  • sponsoredwalk
  • · Replies 7 ·
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7

Pressure Ratio of He to N2 at Equal Density

  • Bohrok
  • · Replies 4 ·
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4

Gen Chem, Factors Affecting Solubility

  • coffeecat91
  • · Replies 1 ·
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1

What is particle spin?

  • kashiark
  • · Replies 7 ·
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7

Difference between average velocity and instantaneous velocity

  • Athikom 02
  • · Replies 2 ·
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2

What Does Compound Notation with Parentheses and Colons Mean?

  • AcidRainLiTE
  • · Replies 2 ·
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2

Why does cubic kilometre give a different result than cubic metre?

  • WannabChemist
  • · Replies 4 ·
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4
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1

Solution check for pH of Strong Acid and Strong Base

  • pavadrin
  • · Replies 2 ·
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2

Solving Hybridisation: 2pz, 2px, sp3, 2py Bonds

  • pavadrin
  • · Replies 2 ·
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2

Colligative properties: vapor pressure with an electrolyte

  • Juan Pablo
  • · Replies 1 ·
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1
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1

Number of chromosomes in each step of mitosis in human

  • FlipStyle1308
  • · Replies 3 ·
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3

Final temperature of ice and warm water mixture

  • coffeecat91
  • · Replies 3 ·
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3

Find ΔH°f for OH(g) from H2O2 dissociation

  • Dell
  • · Replies 2 ·
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2

Coulometric vitamin C Titration, pretty basic

  • Spirochete
  • · Replies 1 ·
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1

Designing an experiment to test corrosion of alloys for marine vessels

  • prime-factor
  • · Replies 1 ·
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1

Organic Chemistry: Reactivity levels

  • thatgirlyouknow
  • · Replies 4 ·
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4

Organic Chemistry Mechanism Question

  • DoctorB2B
  • · Replies 2 ·
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2

Calculating Boiling Point of HF: ΔH and ΔS Equation Analysis

  • Dell
  • · Replies 3 ·
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3
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1

How many moles of H₂SO₄ react with excess zinc to release 150 kJ?

  • ph_lover3294
  • · Replies 3 ·
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3

What Are the Units of Mass and Heat Quantity in Thermochemistry?

  • ph_lover3294
  • · Replies 5 ·
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5

Solubility of BaF2 with added NaF common ion effect

  • vertciel
  • · Replies 1 ·
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1

Understanding Voltaic Cells: The Role of Fe3+ in the Anode

  • Precursor
  • · Replies 1 ·
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1

Why Is MgF2 the Hardest Among NaF, NaI, MgI2, and CaI2?

  • Neophyte
  • · Replies 1 ·
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1

Chemistry General Chemistry - Intermolecular Forces

  • ChazyChazLive
  • · Replies 1 ·
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1

Nuclear Chemistry: Kinetics of Radioactive Decay and Radioactive Dating

  • redpanda320
  • · Replies 1 ·
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1

Are My Redox Calculations Correct?

  • PBimages
  • · Replies 2 ·
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2

Is the Final pH Calculation Correct?

  • em-kay
  • · Replies 3 ·
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3

Adsorption Isotherm: What Does n/w Mean on Y-Axis?

  • superwolf
  • · Replies 1 ·
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1

Colloidal chemistry - interpretation of lecture notes

  • superwolf
  • · Replies 3 ·
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3

What Does Oil/Water Curvature Indicate about Emulsions and Microemulsions?

  • superwolf
  • · Replies 1 ·
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1

Equilibrium pressure of a gaseous system

  • anisotropic
  • · Replies 24 ·
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24

Titration of HBrO: Calculating pH of KOH Volumes

  • osker246
  • · Replies 3 ·
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3

Solid/liquid Fats at ambient temperatures

  • soopo
  • · Replies 2 ·
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2

Which C-H bond has lowest bond energy in allylic carbanions?

  • gpavanb
  • · Replies 3 ·
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3

Predict the products of electrolysis

  • jumbogala
  • · Replies 5 ·
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5

Standard enthalpy of formation of NaF from Na and F₂

  • deuce1906
  • · Replies 1 ·
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1

Can Isomers Have Different Types of Bonds?

  • student245
  • · Replies 1 ·
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1

Lead tartrate turns black when heated, then ignites in air

  • Blade2point0
  • · Replies 2 ·
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2

Pressure and concentration equilibria

  • vipertongn
  • · Replies 1 ·
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1

Chemistry How Many Moles Were Consumed in a Titration with 5.29 ml of 0.256 M Na2S2O3?

  • wcbryant87
  • · Replies 7 ·
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7

Finding new Pressure in cylinder when compressed

  • yopy
  • · Replies 1 ·
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1

Chemistry 12 - weak acid/electrical conductivity (2 questions)

  • katyross
  • · Replies 1 ·
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1

Steps for gravimetric analysis of mercury in mercury oxide

  • help4drdu
  • · Replies 7 ·
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7

Alka-Seltzer Reaction Experiment: Temperature and Surface Area Effects

  • chemistryhelp
  • · Replies 3 ·
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3

Finding Pressure when given change in temperature

  • Timmey19
  • · Replies 2 ·
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2

Find the equilibrium concentration

  • jumbogala
  • · Replies 2 ·
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2

Help with four physical chemistry problems for finals

  • vistapro
  • · Replies 1 ·
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1

Can RNA segments from different genes fuse during RNA processing?

  • Eshi
  • · Replies 1 ·
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1

Solving pH Changes in Buffer Initial pH 4.45

  • lha08
  • · Replies 2 ·
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2

Atoms in a lead-tin solder sample

  • babyintel
  • · Replies 1 ·
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1

Chemistry Molecular structure and analysis method

  • ~christina~
  • · Replies 4 ·
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4

Determining conc of H2O2 by titration

  • electric.avenue
  • · Replies 6 ·
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6

pH and pOH of AgNO2 solution with Ksp and Ka

  • aqwsde
  • · Replies 7 ·
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7

Determine Kp for N2(g) + 3H2 (g) \Updownarrow 2NH3(g)

  • 312213
  • · Replies 2 ·
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2
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3
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7