Asked by anika
Potassium-42 has a half-life of12.4 hrs. How much of an 848g sample of K-42 will be left after 62 hrs?
Answers
Answered by
oobleck
848 * (1/2)^(62/12.4) = 26.5 g
makes sense, since 62 is 5 half-lives, and 848/32 = 26.5
makes sense, since 62 is 5 half-lives, and 848/32 = 26.5
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