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BREWED Name Integrated Rate Law Practice 1. The decomposition of a certain insecticide in water follows first-order kinetics with a rate constant of 1.45 yr. A quantity of this insecticide is washed into a lake on June 1, leading to a concentration of 5.0 x 10-7 M. (a) What is the concentration of the insecticide on June 1 of the following year? (b) How long will it take for the concentration of the insecticide to decrease to 3.0x 10 M?
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Rate constant (k) e l。4Sys AJtn Now cwe Know ti tosmula us t 3-e time uill be

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