(Answered) A pesticide decomposes following first-order kineticsa if

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A pesticide decomposes following first-order kinetics.

(a) If the half-life of the pesticide is 12 years, what is the rate constant k for the decomposition reaction?

(b) What fraction of the pesticide will be left after 36 years?

(d) How many years will it take for 99.9% of the pesticide to decompose?

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