PROBLEM The iodide ion is oxidized in acid solution to the triiodide ion,I-3, by hydrogen peroxic hydrogen. H2O2(ag) + 31-(ag) + 2H+(ag) → 13-(ag) + 2H2O(1) A series of four experiments was carried out at different concentrations and the initial rates of 13- formation. a) From these data, obtain the reaction orders with with respect to H2O2, I- and H+. b) Then find the rate constant. c) Calculate the speed of reaction when [H2O2]=0.005 M, [I-)=0.020. initial concentration initial velocity Concentrac. Inicial (M) H2O2 I- 0.010 0.010 0.00050 1.15x10-6 0.020 0.010 0.00050 2.30x10-6 0.010 0.020 0.00050 2.30x10-6 0.010 0.010 0.00100 1.15x10-6 Exp. H+ Velocidad Inicial (M/s) 1 3 4

PROBLEM The iodide ion is oxidized in acid solution to the triiodide ion,I-3, by hydrogen peroxic hydrogen. H2O2(ag) + 31-(ag) + 2H+(ag) → 13-(ag) + 2H2O(1) A series of four experiments was carried out at different concentrations and the initial rates of 13- formation. a) From these data, obtain the reaction orders with with respect to H2O2, I- and H+. b) Then find the rate constant. c) Calculate the speed of reaction when [H2O2]=0.005 M, [I-)=0.020. initial concentration initial velocity Concentrac. Inicial (M) H2O2 I- 0.010 0.010 0.00050 1.15x10-6 0.020 0.010 0.00050 2.30x10-6 0.010 0.020 0.00050 2.30x10-6 0.010 0.010 0.00100 1.15x10-6 Exp. H+ Velocidad Inicial (M/s) 1 3 4

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter30: Kinetic Methods Of Analysis

Section: Chapter Questions

Problem 30.9QAP

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