Asked by Kristy
An element decays with a half-life of 32 minutes. How long will it take a sample of 18,472 g to decay to 16g?
Answers
Answered by
oobleck
18472(1/2)^(t/32) = 16
(1/2)^(t/32) = 0.000866
t/32 log0.5 = log0.000866
t/32 = 10.173
t = 325.53 minutes
(1/2)^(t/32) = 0.000866
t/32 log0.5 = log0.000866
t/32 = 10.173
t = 325.53 minutes
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