Biology and Chemistry Homework Help Forum

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Calculate the wavelength of an electron traveling at 1.12*10^5m/s

  • plstevens
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6

How Fast is an Electron Moving Relative to the Speed of Light?

  • plstevens
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5

Chemistry Naming: C First in CO2? H2O OH2?

  • mrzero
  • · Replies 6 ·
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6

What Is the Probability of Their Child Having Sickle Cell Anemia?

  • User Name
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2

Calorimetry- how do I know the final temperature?

  • jumbogala
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2

Chemistry Molecular diffusion question; fick's first law

  • aquabum619
  • · Replies 2 ·
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2

Understanding Rate Mechanisms: Exam Preparation Tips

  • kuahji
  • · Replies 4 ·
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4

Melting Points trend for Primary Alcohols

  • LadiesMan
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1

Solve Trihybrid Cross Problem: Phenotypic Ratio 27:9:9:9:3:3:3:1

  • predentalgirl1
  • · Replies 9 ·
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9

Calculating Valence Electrons in Si 1cm3 Crystal

  • matt222
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2

Choosing the Correct Formula for Stoichiometry Calculations

  • octahedron
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1

What Hybridized Orbitals Explain Water's Bond Angle?

  • newton2008
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3

Bomb Calorimetry: Solve for Water Temp.

  • Mitchtwitchita
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2

Stoichiometry Gold III hydroxide

  • MichaelXY
  • · Replies 3 ·
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3

How does one prepare a 100ml of a 0.1M sodium phosphate buffer?

  • g07l0989
  • · Replies 6 ·
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6

Stoichiometry applied to reactions and chemical equations

  • Basari
  • · Replies 3 ·
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3

Last edited by a moderator: May 3, 2017

  • kittymaniac84
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5
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Calculate the value of Kc for the dissociation reaction

  • kittymaniac84
  • · Replies 5 ·
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5

How does Activation Energy Affect Reaction Rate?

  • dgoudie
  • · Replies 1 ·
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1

Fourfold Bond Compounds - Learn More

  • septal_2006
  • · Replies 3 ·
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3

Calculating Activation Energy and Rate Constant for a Chemical Reaction

  • kittymaniac84
  • · Replies 4 ·
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4

Thermodynamics - Entropy&Heat dispersion

  • AbedeuS
  • · Replies 5 ·
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5

Amount of 6M H2SO4 to lower pH of pool from 7.0 to 4.0

  • Terp
  • · Replies 4 ·
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4

Calculating Kc Equilibrium for PCl3 + Cl2 = PCL5 at 230°C

  • kittymaniac84
  • · Replies 1 ·
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1

Half-cell / reduction potential?

  • eraemia
  • · Replies 1 ·
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1

Which Has a Higher Metabolic Rate: Yeast Cells or Corn Seedlings?

  • dphan
  • · Replies 3 ·
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3

Chemistry-Equilbibrium of NH4HS dissociation

  • hclark91
  • · Replies 4 ·
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4

Gravimetric analysis of a carbonate

  • g07l0989
  • · Replies 1 ·
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1

Chemistry - acids, bases, equilibrium

  • ArcadianGenesis
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1

Alkene reaction with Br2 and NaCl (saturated)

  • Snoop06
  • · Replies 5 ·
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5

Calculate Energy Change for CO + Cl2 Reactions - Help!

  • claudzterz9
  • · Replies 6 ·
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6

Why is kinetic energy NOT proportional to degrees F/C

  • babacanoosh
  • · Replies 1 ·
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1

Vapor Pressure of Hg in a 10m x 10m x 3m Lab

  • MEENU GOURI
  • · Replies 1 ·
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1

Equilibrium of stearic acid dimerization when dissolved in hexane

  • ada0713
  • · Replies 1 ·
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1

Calculate pH of NH3/NH4Cl Buffer System After NaOH Addition

  • Mitchtwitchita
  • · Replies 7 ·
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7

Calculating the Density of a BCC Crystal with Ta Substitution

  • 2slowtogofast
  • · Replies 2 ·
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2

Understanding Spectral Lines and the Bohr Model of the Atom

  • mike_302
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3

Presenting Gregor Mendel: Unique Ideas for an Exceptional Presentation

  • billsmith
  • · Replies 4 ·
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4

What is the concentration of blood plasma under normal conditions?

  • g07l0989
  • · Replies 1 ·
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1

Biology; clarification of apple juice, help please

  • Rose-Elise
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2

Finding percentage of carbonate in mixed sample titration

  • thatgirlyouknow
  • · Replies 4 ·
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4

Cracking the Code of Polyatomic Ions: A Chemistry Student's Guide

  • MichaelXY
  • · Replies 2 ·
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2

How Do You Balance This Net Ionic Equation?

  • tylernichols
  • · Replies 2 ·
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2

Making up various concentraions of ethanol

  • iross75
  • · Replies 5 ·
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5

Understanding Pure Substances vs. Mixtures for Chemistry Students

  • Larrytsai
  • · Replies 3 ·
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3

Chemistry How many moles are in 1kg ice/water?

  • Bill Foster
  • · Replies 2 ·
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2

Chemistry: Noble metals, big need of fast help

  • Saturnfirefly
  • · Replies 2 ·
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2

Which Action Decreases CO2 at Equilibrium?

  • ada0713
  • · Replies 2 ·
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2

When Do Kc and Kp Equal Each Other?

  • ada0713
  • · Replies 3 ·
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3

How Can I Solve This AP Chemistry Free Response Question?

  • FishFace
  • · Replies 1 ·
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1

Whats the difference between a reactant and a reagent?

  • dnt
  • · Replies 5 ·
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5

Finding Hydration & Solubility of LiI: Endo/Exo?

  • Apostle
  • · Replies 1 ·
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1

Redox Titration - Determining the % of Iron II and Iron III

  • xXAznGurlXx
  • · Replies 4 ·
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4

Chemistry What is the largest number of SO3 molecules

  • foleyt70
  • · Replies 2 ·
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2

Chemistry Can the amount of moles in a mixture be determined using mass and molar mass?

  • fk378
  • · Replies 4 ·
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4

Redox Reactions: Barium & How Calculated

  • dodgers42
  • · Replies 1 ·
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1

Anticipated pH of Buffer Solution ( )

  • erjkism
  • · Replies 1 ·
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1

Biology Lab Abstract: Photosynthesis

  • Eshi
  • · Replies 2 ·
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2

Finding Ka from pH Titration Graph

  • BayernBlues
  • · Replies 3 ·
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3

Solving Titration Problems with Acid Rain

  • louischaman
  • · Replies 3 ·
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3

What Determines the Secondary Structure of a Protein?

  • LadiesMan
  • · Replies 2 ·
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2

Van Der Waals Forces: Explaining Role in Molecule Properties

  • pink_ele
  • · Replies 3 ·
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3

Calculating Genetic Probabilities with Punnet Squares

  • at2341
  • · Replies 1 ·
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1

Is there a half cell potential for silicon?

  • nickdanger
  • · Replies 2 ·
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2
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7

Supply & Demand: Grain Production Increases and Prices Remain Low

  • jalen
  • · Replies 3 ·
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3

How Does Temperature Affect Cell Population Growth Over Time?

  • addicted
  • · Replies 3 ·
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3

How Do You Calculate the Solubility of AgCl in an HCl Solution with pH 2.30?

  • physicsperson
  • · Replies 2 ·
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2

Explain D6h Symmetry of C6O6 2- Anion in "Inorganic Chemistry" Huhney

  • telethrow
  • · Replies 2 ·
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2

Help in equillibrium problem with directon of net change

  • tribalman100
  • · Replies 1 ·
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1

Chemical equation for Al + nitric acid?

  • luvable
  • · Replies 1 ·
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1

Understanding Osmotic Pressure: Equation and Explanation

  • john16O
  • · Replies 4 ·
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4

How Can I Improve My Skills in Solving Chemistry Word Problems?

  • john16O
  • · Replies 4 ·
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4

Finding which of two metals in an electrochemical cell reduces

  • physicsperson
  • · Replies 2 ·
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2

Chemistry Determining Number of Moles Question

  • predentalgirl1
  • · Replies 4 ·
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4

HELP on Hardy Weinberg Problem

  • iluvcats
  • · Replies 2 ·
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2

Calculate Volume of Ammonia for 1 Tonne Ammonium Nitrate

  • newkidintownu
  • · Replies 4 ·
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4

Reaction steps and Activation Energies

  • engineer23
  • · Replies 1 ·
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1

Stoichiometry Problem: Finding Mass of Hydrogen Reacting with 50g Nitrogen

  • lolecules
  • · Replies 10 ·
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10

Calculating Mass of Water in NH4Cl Solution After Temp Change

  • kuahji
  • · Replies 5 ·
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5

Can Hypnosis Be Scientifically Validated Through Experimental Research?

  • GreatMinds
  • · Replies 1 ·
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1

Buffer Solutions adding acid or base

  • beccaram002
  • · Replies 1 ·
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1

Why Did the Water's Temperature Increase Without Adding Heat?

  • Benzoate
  • · Replies 1 ·
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1

Solving for Grams of Citric Acid in Juice Solution

  • jumbogala
  • · Replies 12 ·
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12

How Do Action Potentials Propagate in Response to Stimulation?

  • sillucius
  • · Replies 3 ·
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3

Equilibrium in reaction of C2H5CO2H(l) + C3H7OH(l)

  • Mitchtwitchita
  • · Replies 1 ·
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1
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2

Understanding Dissociation Energy: O2+ vs O2

  • gazepdapi1
  • · Replies 2 ·
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2

Total Frustration Radioactive Decay Need Fast Help

  • PremedBeauty
  • · Replies 2 ·
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2

Chemistry Understanding Avogadro's Number and the Role of Carbon-12 in the Mole Concept

  • Larrytsai
  • · Replies 2 ·
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2
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3

Tracing the path of hydrogen atoms after the ingestion of glucose.

  • john16O
  • · Replies 1 ·
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1

Vapor pressure of a liquid homework

  • glasshut137
  • · Replies 1 ·
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1

Determining K of Fe3+ + SCN- <-> Fe(SCN) Reaction

  • cemar.
  • · Replies 1 ·
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1

Energy required for expansion into viscous environment

  • motorfreak
  • · Replies 7 ·
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7

Calculating Natural Abundance of Lithium Isotopes

  • Mootiek
  • · Replies 2 ·
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2

Osmotic Pressure &amp; Mass Percent

  • kuahji
  • · Replies 2 ·
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2

How Do You Calculate the Mass of an Osmium Sphere?

  • Mootiek
  • · Replies 1 ·
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1

Solve Mass & Volume of CO2 & O2: 6CO2 + 6H2O -> C6H12O6

  • Kreme
  • · Replies 1 ·
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1