Biology and Chemistry Homework Help Forum

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A question on precipitation reactions

  • ASidd
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1

What Could Cause Errors in Barium Sulfate Precipitation?

  • ASidd
  • · Replies 6 ·
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6

Question about absorbance (beer's law)

  • Rujano
  • · Replies 6 ·
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6

Calculating Concentrations in a Buffer Solution

  • adhlpi
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1

Calculations of the Winkler Method Explained

  • CGallin
  • · Replies 6 ·
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6

Chemistry Measuring Energy from the combustion of food molecules

  • idragalin
  • · Replies 1 ·
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1

Enthelpy of vaporization from Clausius–Clapeyron

  • nod32
  • · Replies 2 ·
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2

Change in Enthelpy when Internal Energy does not Change

  • Luscinia
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1

Reactions, Organic and Medical Substances

  • wiraimperia
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1
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1

What volume of Hg(NO3)2 is required for precipitation?

  • Mackydoodle
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3

Basic thermodynamic in chemistry, temperature of melting ice

  • qpham26
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4

Simulating a pool system - concentrations help

  • Apollonian
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3
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1

Simple solutions question (dilution)

  • Rujano
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2

How do you calculate moles and neutralization in a buffer solution?

  • qpham26
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3

Calculating the Ka from pH and initial concentration

  • maceng7
  • · Replies 4 ·
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4

What Are the Functional Groups in Alantolactone?

  • τheory
  • · Replies 1 ·
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1

What Steps Solve a Complex Molarity Problem?

  • pasido
  • · Replies 3 ·
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3
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6

Specific Heat of Water - What is the Heat Capacity?

  • Litcyb
  • · Replies 3 ·
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3

Chemistry Calculate Reactant Concentration from Chemical Equilibrium Moles

  • ohms law
  • · Replies 8 ·
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8
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3

Calculate Heat of Reaction for 50g of Water at 80°C

  • aDVnatgae
  • · Replies 6 ·
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6

Rate of Reaction Homework: Bromination of Acetone Order

  • Sassenav22
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2

Is the resolution of ibuprofen with pyrrolidine, C4H9N, possible?

  • ochemstudent
  • · Replies 1 ·
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1

Calculating radius of Rubidium in unit cellHelp.

  • christian0710
  • · Replies 5 ·
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5

Figuring pH of .20M NH3 and .35M NH4Cl

  • mesa
  • · Replies 4 ·
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4
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11

Calculate Volume for 0.1M HCl Solution in 300ml at 32%

  • assaftolko
  • · Replies 11 ·
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11

ICE chart, Equilibrium question

  • dolpho
  • · Replies 4 ·
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4
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4

Physics concept that originated from an animal source?

  • GetNVan4Candy
  • · Replies 5 ·
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5

Chemistry What is the number of moles of OH- in 0.3 L OF 0.005 M Ba(OH)- ?

  • AakashPandita
  • · Replies 1 ·
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1

What is the degree of dissociation of N2O4 at 100°C and 1 atm?

  • utkarshakash
  • · Replies 3 ·
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3

Weight % Nitrogen in 0.16 mol ATP: Calculate Now!

  • assaftolko
  • · Replies 1 ·
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1
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6

Uncertainly Principle Fast Neutrons

  • CGallin
  • · Replies 1 ·
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1

Calorimetry question (unaccounted heat loss)

  • FLgirl
  • · Replies 5 ·
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5

Rearranging equation for heat capacity

  • FLgirl
  • · Replies 3 ·
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3

Temperature change for an exothermic reaction

  • FLgirl
  • · Replies 1 ·
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1

Question about Balancing Redox Reactions

  • Dove99x
  • · Replies 1 ·
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1

Chemistry Ionic Bonds. Which is the strongest?

  • name_ask17
  • · Replies 1 ·
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1

Calculate the molarity of a NaOH solution

  • casey619
  • · Replies 1 ·
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1

Biology Punnet Square Question

  • ab94
  • · Replies 1 ·
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1

Why Do Cyclic Aromatic Molecules Exhibit Pi Interactions?

  • mather
  • · Replies 1 ·
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1

Energy of an electron in hydrogen

  • mahrap
  • · Replies 2 ·
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2

I'm not sure that anyone here knows the context or terminology of your problem.

  • surferbarney0729
  • · Replies 9 ·
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9

What is the Correct Concentration of Sr2+ in a Saturated SrSO4 Solution?

  • Jimbo57
  • · Replies 2 ·
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2

Calculating mols carboxylic acid needed to nuetralize NaOH solution

  • mesa
  • · Replies 5 ·
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5

Is Tetraphenylporphyrin Polar or Nonpolar?

  • τheory
  • · Replies 2 ·
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2

Balancing a Redox Reaction in Acidic Solution

  • Bound
  • · Replies 1 ·
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1

Find total ionic (balanced equation) for this particular reaction.

  • name_ask17
  • · Replies 2 ·
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2
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1

Determine the partial pressure of gas at equilibrium

  • ohms law
  • · Replies 4 ·
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4

What is the concentration of chromate?

  • Chaz32621
  • · Replies 9 ·
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9

Chemistry Calculating the Concentration of N/5 HCl After Removal of 3.65g

  • xiphoid
  • · Replies 4 ·
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4

Determining Heat of Formation of n-Butane

  • Nellen2222
  • · Replies 5 ·
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5

Empirical Formula from Stoichiometry?

  • jacksonpeeble
  • · Replies 2 ·
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2

Calculate the Second Ionization Energy of Lithium

  • pasido
  • · Replies 2 ·
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2

Is Decreased Internal Energy Essential for Spontaneous Reactions?

  • utkarshakash
  • · Replies 6 ·
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6

Physical Chemistry water vapor/phases present question?

  • qnzbabi91
  • · Replies 3 ·
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3

Enthalpy of Polymerization Calculation for Ethylene

  • utkarshakash
  • · Replies 1 ·
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1

How Do You Calculate the Resonance Energy of Benzene?

  • utkarshakash
  • · Replies 3 ·
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3

Question regarding victor meyer method

  • unholy031
  • · Replies 1 ·
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1

In which case temperature increase is highest

  • utkarshakash
  • · Replies 2 ·
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2

Microeconomics problem on choosing an equivalent bundle

  • Dostre
  • · Replies 2 ·
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2

Theoretical pH of HOAc + NaOAc Solution

  • ahhppull
  • · Replies 1 ·
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1

Solving a Dilute Barium Hydroxide-H2SO4 Reaction

  • iRaid
  • · Replies 3 ·
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3

Simple Redox Balancing, need confirmation

  • AGNuke
  • · Replies 2 ·
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2

Stoichiometry: Calculating Mass of HCl Neutralized by Milk of Magnesia

  • FLgirl
  • · Replies 2 ·
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2

PH, Alkalinity, and total carbonate concentration

  • jetsetter
  • · Replies 9 ·
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9
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1

Organic Chemistry - Nomenclature Question

  • soccer123
  • · Replies 2 ·
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2
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3

Physical Chemistry- Partial Pressures

  • PerenialQuest
  • · Replies 3 ·
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3

AP CHem, finding concentration of H2O2 by titration

  • Poly550
  • · Replies 1 ·
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1

Is XeO2F4 in the D4h Point Group?

  • ochemnerd
  • · Replies 3 ·
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3

Stoichiometry hydrated NiSO4 question

  • 5ymmetrica1
  • · Replies 7 ·
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7

Chemistry Acid/base solubility question

  • Nellen2222
  • · Replies 2 ·
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2

Meaningless to distinguish active site and binding site?

  • Kinase
  • · Replies 3 ·
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3

I don't understand this Vapor Concept problem?

  • Mackydoodle
  • · Replies 3 ·
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3

Standard change of enthelpy, hess's law question

  • gurpalc
  • · Replies 1 ·
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1

Thermodynamics Rigid tank problem

  • jorsh
  • · Replies 1 ·
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1

Solving Henderson-Hasselbalch Equation: Buffer Question

  • tmumby
  • · Replies 1 ·
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1

Chemistry How to Find Initial Moles of Reactants for Given Reaction | Moles Homework

  • anthonych414
  • · Replies 1 ·
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1

What is the pH of a 0.1M Na2HAsO4 solution?

  • Nikitin
  • · Replies 3 ·
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3

Biology How Many Ways Can an 8 Oar Boat Crew Be Selected from 11 People?

  • xiphoid
  • · Replies 1 ·
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1

Calculating Oxygen Gas Released from Heating Calcium Chlorate

  • Mackydoodle
  • · Replies 2 ·
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2

Please help me visualize H2O autoionization concepts

  • LearninDaMath
  • · Replies 6 ·
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6

How to calculate initial concentration

  • D.J Falcon
  • · Replies 2 ·
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2

Why does [1H2O->1(H) + 1(OH)], yet [10^(-14)M=10^(-7)M+10^(-7)M]?

  • LearninDaMath
  • · Replies 2 ·
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2

What is the hybridization of oxygen in formaldehyde?

  • τheory
  • · Replies 1 ·
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1

Cyclohexane vs Hexene: Isomers & Soot

  • davon806
  • · Replies 3 ·
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3

How Many Ions are Present in 1 Formula Unit of HI, HBr, and N2S5?

  • name_ask17
  • · Replies 12 ·
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12

Quantum Mechanics and Electron Configuration in a Modified Universe

  • name_ask17
  • · Replies 8 ·
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8

Qualitative Analysis Homework - Inference from Q Mixture

  • chikis
  • · Replies 14 ·
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14
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1

Atomic weight and noble gases in Mendelev's periodic table

  • mahrap
  • · Replies 1 ·
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1

What Are the Key Uses of Bromine in Industry?

  • chewchun
  • · Replies 2 ·
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2