Chemistry, 24.03.2020 05:27, preciousweeks11
(6 points) Alice owns 20 grams of a radioactive isotope that has a half-life of ln(4) years. (a) Find an equation for the mass m(t) of the remaining isotope Alice owns after t years.
Answers: 1
![[A]=\frac{20}{10^{-0.217t}}](/tpl/images/0560/5902/8b1f7.png)
= half life of the reaction = 
![k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}](/tpl/images/0560/5902/f1041.png)
![[A_o]](/tpl/images/0560/5902/dc622.png)
= initial amount of the sample = 20 grams![0.5=\frac{2.303}{t}\log\frac{20}{[A]}](/tpl/images/0560/5902/d688d.png)
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(6 points) Alice owns 20 grams of a radioactive isotope that has a half-life of ln(4) years. (a) Fin...
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