Biology and Chemistry Homework Help Forum

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Prove non adiabatic reversible expansion and ΔS

  • Nick_273
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1

Does Q=mcΔT use just the substance mass or substance plus water?

  • deezer
  • · Replies 4 ·
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4

Physical Chemistry: Estimating ΔG of an Ideal Gas

  • Nick_273
  • · Replies 4 ·
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4

Nickel in Coffee Cup Calorimeter (Small Error)

  • deezer
  • · Replies 2 ·
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2

What state is Na3N in at room temperature?

  • deezer
  • · Replies 4 ·
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4

Chemistry Relationship between moles of O2 and Ch2 Units in a combustion reaction

  • deezer
  • · Replies 3 ·
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3

Reaction confusion with a lab we did last week.

  • Titandwedebil
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1

Calculation of Titration problems - Should be Easy?

  • τheory
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2

Titration lab with potassium permanganate

  • cottonz
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1

Three ions formed by oxygen: oxide, peroxide, superoxide

  • Dometrios
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5

Why is it that we can say: MITOSIS = CELLULAR IMMORTALITY?

  • reyrey389
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4

Finding amount of iron from absorbance

  • Puchinita5
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3

How Many Grams of CH4 Are Needed to Produce 50.0 g of CHCl3?

  • AnomalyCoder
  • · Replies 10 ·
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10

Specific Heat Capacity Question Mixture Q=MCdeltaT

  • dav1d
  • · Replies 9 ·
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9

How do you calculate the specific heat capacity of nickel?

  • dav1d
  • · Replies 5 ·
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5

Finding mass percent of barium ions by gravimetric analysis with BaSO4

  • leah3000
  • · Replies 3 ·
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3

Biology Biology: Genetics: Hardy-weinberg + restriction enzyme

  • foxyfresh
  • · Replies 4 ·
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4

Chemistry Finding the pressure required when given number of molecules.

  • miniradman
  • · Replies 11 ·
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11

Calculating Iron (Fe) PPM from mL Lab Sample

  • Puchinita5
  • · Replies 3 ·
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3
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1

How Do You Calculate the Formation Reaction ΔH Using Hess's Law?

  • Race
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1

Calculating Max Work from Reversible Cooling of Liquid

  • phizzle86
  • · Replies 1 ·
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1

Understanding Casein's Reaction in Water: pH 4.6 Residue Formation

  • vilhelm
  • · Replies 2 ·
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2

How do prokaryotes use cellulose as energy source?

  • chocolatepie
  • · Replies 1 ·
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1

Spectrophotometry and Beer-Lamberts Law

  • joeyjo100
  • · Replies 1 ·
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1

Heat of rxn per mol H2O formed in acid-base reaction

  • Nuchem
  • · Replies 5 ·
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5

What are some experimental errors associated with spectrophotommetry?

  • omgwtfitsp
  • · Replies 1 ·
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1

How to calculate species abundance and diversity

  • blicker
  • · Replies 6 ·
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6
  • Poll Poll

Identifying Metal from Photoelectric Effect Experiments

  • sammiekurr
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1

Back Titration of Ethanol in Vodka with Excess Dichromate Solution

  • googol
  • · Replies 5 ·
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5

How Do You Determine Vertical Reactions Using Macaulay's Method?

  • ar202
  • · Replies 1 ·
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1

Find the ΔE of the combustion of octane in a bomb calorimeter

  • MarcL
  • · Replies 1 ·
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1

How Can Water's Chemical Structure Be Altered?

  • Partisan
  • · Replies 3 ·
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3
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3

Grams of gasoline needed to raise level of CO in air.

  • eddzzz_2011
  • · Replies 1 ·
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1

Calculating ξ° value for a galvanic cell

  • Phyzwizz
  • · Replies 1 ·
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1

Daily output of NO from power plant.

  • eddzzz_2011
  • · Replies 8 ·
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8
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16

Kinetic Theory- Calculating Kinetic Energy

  • FisiksIdiot
  • · Replies 3 ·
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3

Calculating q,w,H and U [Practical Setting]

  • chocolatepie
  • · Replies 10 ·
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10

Finding mass of impure CaSO4 from solubility data

  • loz123
  • · Replies 2 ·
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2

What Are the Products of Acetylene Combustion in Air?

  • Jacob87411
  • · Replies 4 ·
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4

Free resources on quasicrystals for a research paper

  • cesaruelas
  • · Replies 1 ·
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1

Q : write products formed when polyester is heated with aqueous sodium

  • charlotta
  • · Replies 4 ·
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4

Finding volume using Molarity + Equation

  • ballinbob
  • · Replies 1 ·
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1

Calculating q, w, H, and U for an Ideal Gas at 25°C and 100kPa

  • chocolatepie
  • · Replies 11 ·
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11

Chemistry Average number of air molecules.

  • eddzzz_2011
  • · Replies 18 ·
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18

What Is the Subshell Designation for l=5 in Quantum Mechanics?

  • JustinLiang
  • · Replies 1 ·
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1

Which approach to gas stoichiometry with PV=nRT is correct?

  • supernova1203
  • · Replies 7 ·
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7

Acidic Hydrogens in Aspartame: Which Ones Are Most Acidic and Why?

  • ahhppull
  • · Replies 2 ·
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2

Solve 5pH Solution from Citric Acid (1L)

  • vande060
  • · Replies 1 ·
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1

ORGANIC Chemistry: Nucleophilic Substitution

  • bluey2014
  • · Replies 5 ·
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5

Why Must a Pipette Be Warm When Transferring a Hot Solution?

  • Mazurka
  • · Replies 3 ·
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3

Double reciprocal plot for finding Km and Vmax values

  • skyblu280
  • · Replies 1 ·
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1

Is 0.132 Hartrees/Bohr^2 Correctly Converted to J/m^2?

  • AxiomOfChoice
  • · Replies 3 ·
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3

Adiabatic expansion at constant pressure.

  • LogicX
  • · Replies 2 ·
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2

Assigning R/S stereochemistry in Newman projections

  • Marconis
  • · Replies 2 ·
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2

Chemistry Calculating the Mass of a Mole of Ethanol (C2H6O)

  • zenith8350
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1
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1

Would the precipitate be Copper II Chloride in this chemical equation?

  • kotulakj2
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1

I know that when you hyperventilate, the Pco2 in blood decreases

  • jnimagine
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2

Finding Na2S2O3 molarity from iodometric titration of copper in brass

  • Puchinita5
  • · Replies 2 ·
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2

Lewis and dot structure of (NH4)2SO3, Al2(SO4)3 and Fe(ClO4)3

  • aankaa23
  • · Replies 1 ·
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1

Resistance versus temperature in weak acids, strong acids, and water

  • inutard
  • · Replies 12 ·
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12

Ideal Gas Expansion: Reversible Process Calc.

  • nancy awwad
  • · Replies 3 ·
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3

Is the Krebs cycle exergonic or endergonic?

  • tica86
  • · Replies 2 ·
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2

Is the Unknown Ionic Solution NaI, AgCl, ZnI2, or CuBr2?

  • paperdoll
  • · Replies 3 ·
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3

Lattice enthalpy of FeF2 from FeCl2 data

  • hiturtle
  • · Replies 1 ·
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1

Balancing Redox Reactions: CH4 + O2 --> CO2 + H2O

  • tica86
  • · Replies 1 ·
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1

How Do You Write the Electron Configuration for Si and O in SiO4?

  • pearapple
  • · Replies 1 ·
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1

What is the binding energy in NaCl?

  • pearapple
  • · Replies 3 ·
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3

Question regarding energy from chemicals (M.C.Q)

  • hamxa7
  • · Replies 3 ·
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3

Relationship between Electroplating and Kinetic Theory

  • paperdoll
  • · Replies 5 ·
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5

Solving Rate of Reaction Problems: Ethyl Ethanoate and Sodium Hydroxide

  • jsmith613
  • · Replies 3 ·
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3

Do Chain and Ring Forms of Glucose Have the Same Structure?

  • phizics09
  • · Replies 1 ·
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1

How Do You Determine if a Reaction Has Reached Equilibrium Using Kp?

  • Phyzwizz
  • · Replies 1 ·
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1

Chemistry Mole percent of N2H4 in mixture that decomposes at 1200K

  • Saitama
  • · Replies 8 ·
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8

Balancing redox equations using 1/2 reaction method

  • veganazi
  • · Replies 3 ·
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3

What are False Priming Sites in PCR Reactions?

  • sdoyle1
  • · Replies 1 ·
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1

Does 1L of Petrol Contain 790g of Heptane?

  • supernova1203
  • · Replies 1 ·
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1

Finding slug mass by difference with a centigram balance

  • Partisan
  • · Replies 7 ·
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7

How to find an unknown amount (titration)

  • hhs15
  • · Replies 2 ·
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2

What Volume of CO2 is Produced from H3PO4 and Na2CO3 Reaction?

  • cali954
  • · Replies 4 ·
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4

What Defines a d0 Complex in Inorganic Chemistry?

  • salazar888
  • · Replies 2 ·
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2

The Ionic Bond between Li and Br: Understanding Electronegativity Differences

  • Edin_Dzeko
  • · Replies 2 ·
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2
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1

Finding lung volume when body temperature increases from 36°C to 39°C

  • student54321
  • · Replies 1 ·
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1
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1

Preparing 40mM TES pH 7.4 - Calculating A-/HA

  • vande060
  • · Replies 6 ·
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6

Drop ice in water, what is the final temperature of the water?

  • LogicX
  • · Replies 11 ·
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11

Chemistry Chemistry: Molecular vs. Atomic Iodine

  • kayem
  • · Replies 4 ·
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4

Chemistry What Is the Molecular Formula of Sulfur in Benzene?

  • Puchinita5
  • · Replies 17 ·
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17

Why is high vital capacity important?

  • dav1d
  • · Replies 2 ·
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2
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1

Reactions in Solution, But Not In Solid Form?

  • Mazurka
  • · Replies 1 ·
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1

Manners of Dissolving Substances

  • Mazurka
  • · Replies 1 ·
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1

Chemistry: Determining Solubility of Vitamins

  • Mazurka
  • · Replies 1 ·
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1

Organic: lanosterol Biosynthetic Cyclization

  • whatlifeforme
  • · Replies 1 ·
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1

How can we convert 1-hexene to cis-3-octene using alkynes as intermediates?

  • whatlifeforme
  • · Replies 1 ·
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1

Chemistry How Many Moles of Oxygen Gas Are Produced from Decomposing Hydrogen Peroxide?

  • chakakhan
  • · Replies 3 ·
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3