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SpyIntel [72]
4 years ago
7

What fraction of a sample of 6832ge, whose half-life is about 9 months, will remain after 2.9 yr ?

Chemistry
1 answer:
Viefleur [7K]4 years ago
4 0
<span>The half-life of 9 months is 0.75 years. 2.0 years is 2.0/0.75 = 2.67 half-lives. Each half-life represents a reduction in the amount remaining by a factor of two, so: A(t)/A(0) = 2^(-t/h) where A(t) = amount at time t h = half-life in some unit t = elapsed time in the same unit A(t)/A(0) = 2^(-2.67) = 0.157 15.7% of the original amount will remain after 2.0 years. This is pretty easy one to solve. I was happy doing it.</span>
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