4 solutions and kinetics

4 solutions and kinetics - ∆ H, E a , transition state,...

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Solutions Vocab. Solvent, solute, saturated, unsaturated, supersaturated Concentration ln Lso molsolute Molarity = kgsolvent molsolute Molality = mole fraction Solubility Rules 1) All Group I metal, NH 4 + , and NO 3 - salts are soluble 2) Most Ag + , Pb 2+ , and Hg 2 2+ salts are insoluble Phase Solubility in Liquids Rules 1) Solids are more soluble at higher temperatures 2) Gases are less soluble at higher temperatures 3) Gases are more soluble at higher pressures Colligative Properties van’t Hoff factor 1) Freezing Pt. Depression m K T F F = 2) Vapor Pressure Depression (Raoult’s Law) Total A A P P χ = 3) Boiling Pt. Elevation m K T B B = 4) Osmotic Pressure π = MRT
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Kinetics Kinetics vs. Thermodynamics Rate expressions 2H 2 O (g) 2H 2(g) + O 2(g) t O H - 2 ] [ 2 = t H 2 ] [ 2 = t O ] [ 2 Rxn Coordinate Diagram Identify
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Unformatted text preview: ∆ H, E a , transition state, intermediates Rate Determining Step (slow step) Catalyst – speeds up a reaction by lowering the activation energy by providing an alternate mechanism (pathway) for the reaction to occur R ate laws rate = k[A] x [B] y For the reaction 2NO (g) + Cl 2(g) ⇔ 2NOCl (g) , the following results were obtained: [NO] (mol/L) [Cl 2 ] (mol/L) Initial Rate (mol/L . s) 0.10 0.10 0.18 0.10 0.20 0.36 0.20 0.20 1.44 What is the rate law for this reaction? What is the overall rxn order? What is the rate constant? Mechanisms O 3 ⇔ O 2 + O (rapid equilibrium) or (fast) O + O 3 ⇔ 2O 2 (slow) What is the intermediate? What is the rate law?...
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This note was uploaded on 08/28/2011 for the course CHEMISTRY 100 taught by Professor Haha during the Spring '11 term at SUNY Stony Brook.

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4 solutions and kinetics - ∆ H, E a , transition state,...

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