2A → B is second order in A with a rate constant of 31.7 M−1 · s−1 at 25°C. (a) Starting with [A]0 = 0.00713 M, how long will it take for the concentration of A to drop to 0.00180 M? (b) Calculate the half-life of the reaction for [A]0 = 0.00713 M. (c) Calculate the half-life of the reaction for [A]0 = 0.00203 M.
2A → B is second order in A with a rate constant of 31.7 M−1 · s−1 at 25°C. (a) Starting with [A]0 = 0.00713 M, how long will it take for the concentration of A to drop to 0.00180 M? (b) Calculate the half-life of the reaction for [A]0 = 0.00713 M. (c) Calculate the half-life of the reaction for [A]0 = 0.00203 M.
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter11: Chemical Kinetics: Rates Of Reactions
Section: Chapter Questions
Problem 41QRT
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The reaction
2A → B
is second order in A with a rate constant of 31.7 M−1 · s−1 at 25°C.
(a) Starting with [A]0 = 0.00713 M, how long will it take for the concentration of A to drop to 0.00180 M?
(b) Calculate the half-life of the reaction for [A]0 = 0.00713 M.
(c) Calculate the half-life of the reaction for [A]0 = 0.00203 M.
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