Will Rate Quick! Environmental scientists calculating pollutant half-lives often

Question

Will Rate Quick!

Environmental scientists calculating pollutant half-lives often define a transport rate constant that is analogous to a reaction rate constant and describes how a pollutant moves out of an ecosystem. In a study of the gasoline additive MTBE in Donner Lake, California, scientists from the University of California, Davis, found that in the summer the half-life of MTBE in the lake was 24 days. Assume that the transport process is first order. What was the transport rate constant of MTBE out of Donner Lake during the study? Express your answer in reciprocal days.

Explanation / Answer

half life= 0.693/ rate constant

=>rate constant=0.693/half-life=0.0288 day-1

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