If a person takes a pain reliever with a 2.5 hour half-life at 1:00 P.M., at what time will three half-lives have expired?
A)3:30 P.M.
B)6:00 P.M.
C)8:30 P.M.
D)None of the above.

Name: If a person takes a pain reliever with a 2.5 hour half-life at 1:00 P.M., at what time will three half-lives have expired? A)3:30 P.M. B)6:00 P.M. C)8:30 P.M. D)None of the above.
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Question

Quizplus · Accepted Answer

Three half-lives of 2.5 hours each total 7.5 hours. Starting from 1:00 P.M., 7.5 hours later is 8:30 P.M.

If a Person Takes a Pain Reliever with a 2