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In this lesson, we will learn how to interpret and convert between the half-lives and rate constants of first-order reactions.
When heated to
) reacts to form its structural
isomer propene with a rate constant of
Calculate the half-life of this first-order reaction.
Calculate the percentage of cyclopropane remaining after 0.750 h, to two significant figures.
Calculate the ratio of cyclopropane to propene after 0.434 h, to two significant figures.
The half-life of a drug in the body of a patient is 42 days. If the drug degrades by a first-order process, how much time is needed for the drug
concentration to decrease to
of the original value?
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