The decomposition of a certain insecticide in water at 12oC follows first-order kinetics with a rate constant of 1.45 yr-1 . A quantity of this insecticide is washed into a lake on June 1, leading to a concentration of 5.0 x 10-7 g/cm3. Assume that the average temperature of the lake is 12oC. (a) What is the concentration of the insecticide on June 1 of the following year? (b) How long will it take for the insecticide concentration to decrease to 3.0 x 10-7 g/cm3?
The decomposition of a certain insecticide in water at 12oC follows first-order kinetics with a rate constant of 1.45 yr-1 . A quantity of this insecticide is washed into a lake on June 1, leading to a concentration of 5.0 x 10-7 g/cm3. Assume that the average temperature of the lake is 12oC. (a) What is the concentration of the insecticide on June 1 of the following year? (b) How long will it take for the insecticide concentration to decrease to 3.0 x 10-7 g/cm3?
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter13: Chemical Kinetics
Section: Chapter Questions
Problem 13.50QE
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The decomposition of a certain insecticide in water at 12oC follows first-order kinetics
with a rate constant of 1.45 yr-1
. A quantity of this insecticide is washed into a lake on
June 1, leading to a concentration of 5.0 x 10-7 g/cm3. Assume that the average
temperature of the lake is 12oC.
(a) What is the concentration of the insecticide on June 1 of the following year?
(b) How long will it take for the insecticide concentration to decrease to 3.0 x 10-7 g/cm3?
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