A flask contains a mixture of compounds A and B. Both compounds decompose by first-order kinetics. The half-lives are 50.0 min for A and 18.0 min for B. If the concentrations of A and B are equal ini- tially, how long will it take for the concentration of A to be four times that of B?

A flask contains a mixture of compounds A and B. Both compounds decompose by first-order kinetics. The half-lives are 50.0 min for A and 18.0 min for B. If the concentrations of A and B are equal ini- tially, how long will it take for the concentration of A to be four times that of B?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter11: Chemical Kinetics: Rates Of Reactions

Section: Chapter Questions

Problem 41QRT

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Chemistry problem . Please look at image in attachment

A flask contains a mixture of compounds A and B.
Both compounds decompose by first-order kinetics.
The half-lives are 50.0 min for A and 18.0 min for
B. If the concentrations of A and B are equal ini-
tially, how long will it take for the concentration of
A to be four times that of B?

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