Biology and Chemistry Homework Help Forum

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Threads

Don't know how to do this stoichiometric problem with 4 questions.

  • gurpalc
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2

Why Are Amino Acids Named After the Alpha Carbon?

  • mather
  • · Replies 6 ·
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6

Why is the enthalpy of formation of ammonia negative?

  • chikis
  • · Replies 10 ·
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10

What do H+ ions do to CO3 in CaCO3?

  • chemchem
  • · Replies 2 ·
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2

Convert 1.0L of Water to Pounds of Moon Rock

  • MACHO-WIMP
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1

How Do Moon Phases Relate to Time of Day?

  • zoiberg137
  • · Replies 2 ·
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2

How Do You Calculate Grams of Solute for Specific Solutions?

  • azncocoluver
  • · Replies 5 ·
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5

Finding molarity and volume of Cu(NO3)2 from copper mass and HNO3

  • gurpalc
  • · Replies 5 ·
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5

Which Gas Has the Highest Vibrational Molar Heat Capacity at 50K?

  • Twickel
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4
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2

Naoh in sodium acetate, raise pH

  • Puchinita5
  • · Replies 2 ·
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2

Macroscopic containers and nanometer hole (Nanoscale systems)

  • themonk
  • · Replies 1 ·
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1

Why Doesn't the Epoxide React?

  • Saitama
  • · Replies 5 ·
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5
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1

Oxidation state and chiral configurations

  • Puchinita5
  • · Replies 4 ·
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4
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3

Calculate the power of a the lift motor

  • taomay
  • · Replies 3 ·
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3
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1

Identifying the Electrophile in But-2-ene and Bromine Reaction

  • chewchun
  • · Replies 5 ·
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5
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1

Why does sucrose have a higher density than water

  • miniradman
  • · Replies 8 ·
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8

Preparation and naming of coordination compounds

  • Rujano
  • · Replies 1 ·
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1

Density problem is the answer in the back wrong?

  • Axmann
  • · Replies 1 ·
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1

Naming chromium oxides CrO3 and Cr2O3

  • chemist2b
  • · Replies 5 ·
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5

Kinetics of Pchem Ques: Adsorption, Desorption, Rate Consts

  • HoshiChemist
  • · Replies 7 ·
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7

Inheritance: What is the chance of the next calf being amputated

  • Swetasuria
  • · Replies 11 ·
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11

Electrode potentials and Bond energy

  • chewchun
  • · Replies 6 ·
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6

Does changes in pH affect tertiery protein?

  • wenxian
  • · Replies 1 ·
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1

Chemistry Ionizing a covalently-bonded molecule?

  • bigplanet401
  • · Replies 2 ·
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2

Why do certain characteristics make a species more susceptible to extinction?

  • Swetasuria
  • · Replies 2 ·
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2

Chemistry What is the scientific name given to the spaces in between molecules/atoms?

  • miniradman
  • · Replies 1 ·
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1

Is it possible to maintain biodiversity without the formation of new species?

  • Swetasuria
  • · Replies 2 ·
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2

AP Chemistry basic reaction problem

  • TheKracken
  • · Replies 1 ·
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1

Calculate bearing AC from bearing AB and angle at A

  • wilson11
  • · Replies 1 ·
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1

What is the best way to find a specific chemical for a lab class?

  • nkk2008
  • · Replies 2 ·
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2

Understanding HCl + Ca(OH)2 Reaction: pH?

  • TylerH
  • · Replies 3 ·
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3

Calculating Size Ratios for Energy Levels in Hydrogen Atom

  • xiphoid
  • · Replies 6 ·
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6

Diffusion rate- pentane in polystyrene

  • jackscholar
  • · Replies 1 ·
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1

Calculating pH of a Buffer System After Addition of Base

  • Soaring Crane
  • · Replies 5 ·
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5

If each orbital can hold a maximum of 3 electrons

  • xiphoid
  • · Replies 5 ·
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5

Which ions exhibit greater stability: N vs O, P vs N, or S vs N?

  • AGNuke
  • · Replies 5 ·
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5

Angle made by angular momentum

  • xiphoid
  • · Replies 1 ·
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1

Materials Science/Attraction Forces Between Ions

  • mstevens199
  • · Replies 1 ·
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1

Several Questions from the 2012 GCE AL Sri Lanka

  • Knightycloud
  • · Replies 4 ·
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4

State of carbon dioxide during fermentation

  • miniradman
  • · Replies 3 ·
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3

Galvanic Corrosion: Anode vs. Cathode Mass Gain/Loss

  • GuMing
  • · Replies 1 ·
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1

Increases in stresses and settlement to an existing building due to a new one

  • jessikat_93
  • · Replies 2 ·
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2

What Is the Molarity of 70% TBHP Solution?

  • amorale
  • · Replies 4 ·
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4

Why is diamond unreactive if carbon atoms have unbonded electrons?

  • jadelamlam
  • · Replies 2 ·
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2

Chemical Kinetics QuestionDetermination of order of reaction

  • nishantve1
  • · Replies 1 ·
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1

Kinetic energy of the emitted electrons

  • xiphoid
  • · Replies 2 ·
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2

Representation of quantum numbers +1/2 and -1/2

  • xiphoid
  • · Replies 1 ·
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1

Allyl Bromide + HBr - Compounds formed during reaction.

  • AGNuke
  • · Replies 6 ·
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6

States of matter; liquids and solids

  • babysnatcher
  • · Replies 1 ·
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1

Find minimum velocity of emitted electron

  • xiphoid
  • · Replies 5 ·
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5

Why does CH3-CO-CH2-Cl react faster in SN2 than CH3-Cl?

  • Saitama
  • · Replies 19 ·
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19

Converting de Broglie Wavelengths for Electrons at Different Voltages?

  • xiphoid
  • · Replies 1 ·
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1

What Is the Psi Phenomena or Psi Effect in Psychology?

  • help1please
  • · Replies 2 ·
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2

Are these cyclohexanes truly chiral or is it a trick question?

  • physickkksss
  • · Replies 5 ·
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5

Find Oxidation State of S in S2O32- Reducing Cl2

  • Michael_Light
  • · Replies 3 ·
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3

Name this amine, including (R,S) stereochemistry

  • cjc0117
  • · Replies 1 ·
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1

What is the oxidation number of platinum in Pt(NH3)2Cl(NO2)?

  • Denver Dang
  • · Replies 2 ·
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2

Acid-base titration calculations with KOH, NaOH, and Ca(OH)2

  • calculus_love
  • · Replies 1 ·
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1

Qualitative analysis lab, zinc problem

  • will1530
  • · Replies 1 ·
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1

Phosphoric acid vs. Hydrochloric acid when removing rust and rerusting

  • Crushgear64
  • · Replies 5 ·
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5

Electrochemistry - Half Cell Reactions

  • AGNuke
  • · Replies 1 ·
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1

Converting from mass/volume to length

  • dchau503
  • · Replies 7 ·
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7

Calculating the pH of an Acid-Water Mixture

  • Gregory.gags
  • · Replies 5 ·
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5

How to Find Ethanol %/Volume at 24 Degrees Celsius?

  • JeeebeZ
  • · Replies 1 ·
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1

Finding valencies from a given element in 3 oxides

  • xiphoid
  • · Replies 2 ·
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2

IUPAC Nomenclature: 3-Chlorobutane-1,2-diol

  • jadelamlam
  • · Replies 4 ·
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4

Combining data from replicated experiments?

  • gravenewworld
  • · Replies 9 ·
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9

Safety precautions to be taken in fractional distillation of petroleum

  • jadelamlam
  • · Replies 4 ·
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4

Finding the least molar mass of organic compound having molar mass > 100

  • xiphoid
  • · Replies 1 ·
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1

Finding pH using ICE chart/quadratic formula on the last step

  • IntegrateMe
  • · Replies 1 ·
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1

Chemistry When forming a micelle, molecules such as fatty acids

  • lha08
  • · Replies 2 ·
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2

Calculating the percentage of silica

  • xiphoid
  • · Replies 3 ·
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3

Can someone explain why this dissolution is exothermic rather than endothermic?

  • IntegrateMe
  • · Replies 1 ·
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1

Prove the relationship between kPa and mmHg?

  • Cathmore
  • · Replies 2 ·
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2

Which have unusually large dipole moments?

  • cjc0117
  • · Replies 5 ·
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5

How to Determine manganese of steel sample?

  • paperdoll
  • · Replies 2 ·
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2

What is the % of Na2CO3 in the unknown sample?

  • member 392791
  • · Replies 1 ·
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1

How Do You Calculate Kp and Qp for Chemical Reactions at Equilibrium?

  • dimens
  • · Replies 2 ·
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2

Chemical Kinetics - Activation Energy and gr

  • ananya1995
  • · Replies 1 ·
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1

Limiting Reagents With 3 Reactants

  • xChee
  • · Replies 2 ·
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2

Dipole Moment, what is Q? and other questions

  • doxos
  • · Replies 1 ·
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1

Disturbing Equilibrium: Effects of Adding Hydrogen on I2 Concentration

  • storm13
  • · Replies 4 ·
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4

Enthalpy change of combustion of ethanol from calorimetry

  • jinhuit95
  • · Replies 1 ·
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1

Chemistry Mole concept- to find isotopic formula

  • xiphoid
  • · Replies 2 ·
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2

What does "induced radiation" mean in this H-atom problem?

  • Saitama
  • · Replies 84 ·
3
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84

Is magnesium hydrogencarbonate commonly found in lab?

  • jadelamlam
  • · Replies 5 ·
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5

Aromatic Nomenclature: Name This Compound

  • 1/2"
  • · Replies 2 ·
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2

How to find the pH of HCl and NaOH combined.

  • Sjm757
  • · Replies 5 ·
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5

pH of phosphate buffer with NaH2PO4 and Na2HPO4

  • bublik13
  • · Replies 6 ·
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6

Synthesis of 2-butyne from 2-butene

  • jfeyen
  • · Replies 2 ·
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2

Find the [H3O+], [OH‐], pH, and pOH

  • IntegrateMe
  • · Replies 7 ·
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7

Volumetic Analysis - calculate concentration

  • Mr Mooch
  • · Replies 4 ·
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4
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1

Find the mass of iron used in the experiment.

  • s3a
  • · Replies 4 ·
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4

Can Spider Mites Be Controlled Without Harming Wasp Predators?

  • omni
  • · Replies 3 ·
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3