HW 10 - Nicolas E Martin - CHEM 204 Spring 2010 Homework 10...

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Nicolas E Martin - CHEM 204 Spring 2010 1 Homework 10 Due date: Fri Apr 9 23:00:00 2010 Initial rate data are listed in the table for the reaction: NH 4 + (aq) + NO 2 - (aq) →N 2 (g) + H 2 O (l) Experiment [NH 4 + ] i [NO 2 - ] i Initial rate (M/s) 1 0.24 0.10 7.2 x 10 -4 2 0.12 0.10 3.6 x 10 -4 3 0.12 0.15 5.4 x 10 -4 4 0.12 0.12 4.3 x 10 -4 First determine the rate law and rate constant. Under the same initial conditions as in Experiment 4 , cal- culate [NH 4 + ] at 473 seconds after the start of the reaction. In this experiment, both reactants are present at the same initial concentration. The units should be M, and should be calculated to three signi±cant ±gures. You are correct. Your receipt is 150-346 Kinetic data are normally presented as graphs. The following questions test your knowledge about labeling and interpreting graphs correctly. [B] is used to represent the concentration of a reactant B in a reaction. A represents the Arrhenius factor and k represents a rate constant. Decide if each of the following statements is True or False. Choices: True , False . A. Consider graph D: if y = 1/[B] and x = time, the slope is equal to k. B. Consider graph D: if y = ln k and x = 1/T, the slope is equal to E a . C. Consider graph C: if y = 1/[B] and x = time, the graph could represent a second order reaction. D. Consider graph D: if y = ln[B] and x = time, the graph
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This note was uploaded on 11/19/2010 for the course CHEM 204 taught by Professor Gruebele during the Spring '08 term at University of Illinois, Urbana Champaign.

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HW 10 - Nicolas E Martin - CHEM 204 Spring 2010 Homework 10...

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