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CHEM 2 Week 4 Notes

by: Wade Carter

CHEM 2 Week 4 Notes CHEM 1123

Marketplace > University of Arkansas > CHEM 1123 > CHEM 2 Week 4 Notes
Wade Carter
GPA 3.73
University Chemistry II
Lorraine Brewer

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About this Document

Vapor pressure; colligative properties; reaction rate; rate laws
University Chemistry II
Lorraine Brewer
Class Notes
chem 2, Chemistry, CHEM 1121
25 ?




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This 0 page Class Notes was uploaded by Wade Carter on Friday February 12, 2016. The Class Notes belongs to CHEM 1123 at University of Arkansas taught by Lorraine Brewer in Spring 2016. Since its upload, it has received 70 views.


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Date Created: 02/12/16
Chemistry II Vapor Pressure 0 A nonvolatile solute lowers vapor pressure of solvent 0 The vapor pressure of pure solvent is greater than the vapor pressure of a solution 0 The vapor pressure of the solution is directly proportional to the amount of the solvent in the solution RaOUIt SLaWI Psolvent in solution Xsolvent 39 Po Colligative Properties BoilingPoint Elevation 0 Nonvolatile solutes elevate the boiling point of the solvent 0 Kb msolute FreezingPoint Depression 0 When a solute is dissolved in a solvent the freezing point of the solution is lower than that of the pure solvent 0 f msolute Osmosis ow of solvent into the solution through a semipermeable membrane 0 H MRT Van t Hoff Factor 0 The relationship between the moles of solute dissolved and the moles of particles in solution is usually expressed as moles of particles in solution moles of solute dissolved Reaction Rate Chemistry 11 concentration ofA at time t2 concentration of A at time 11 Rate AtA 39 T 0 Reaction Order 0 Zero Order The concentration is independent of the rate of reaction 0 First Order The concentration is directly proportional to the rate of reaction and increases by the same factor 0 Second Order The concentration changes by a factor of the change squared 0 Rate kAquotB quot O The sum of the exponents in the reaction rate equation equals the overall reaction order 0 Rate Laws 0 shows how the rate of a reaction depends on concentrations 0 shows how the concentrations of species in the reaction depend on time


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