Chemistry, 02.09.2019 19:30 versaceblooper
The half-life of sodium-24 is 15.0 hours. what percentage of a sample of sodium-24 remains after 75.0 hours?
Answers: 1
![[A_t]=[A_0]e^{-kt}](/tpl/images/0221/2866/1ef89.png)
![[A_t]](/tpl/images/0221/2866/5262c.png)
is the concentration at time t
![[A_0]](/tpl/images/0221/2866/9a686.png)
is the initial concentration![\frac {[A_t]}{[A_0]}=e^{-0.04621\times 75}](/tpl/images/0221/2866/7ca81.png)
![\frac {[A_t]}{[A_0]}=0.03124](/tpl/images/0221/2866/49cde.png)
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The half-life of sodium-24 is 15.0 hours. what percentage of a sample of sodium-24 remains after 75....
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