Answers: 1
![[A]=\frac{[A_o]}{2^n}](/tpl/images/0139/1002/45c59.png)
![[A_o]](/tpl/images/0139/1002/dc622.png)
![[A_o]=?](/tpl/images/0139/1002/d383c.png)
![25 mg=\frac{[A_o]}{2^{5}}](/tpl/images/0139/1002/3d53a.png)
![[A_o]=25mg\times 2^5=800 mg](/tpl/images/0139/1002/a2c0c.png)
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