Chemistry, 07.04.2020 22:53 99keevintaylor012
The final volume of buffer solution must be 100.00 mL and the final concentration of the weak acid must be 0.100 M. Based on this information, what mass of solid conjugate base should the student weigh out to make the buffer solution with a pH of 2.00?
Answers: 2
as follows.
![pK_{a} + log \frac{[A^{-}]}{[HA]}](/tpl/images/0587/7412/24c3e.png)
![1.92 + log \frac{[A^{-}]}{0.1 M}](/tpl/images/0587/7412/4e97a.png)
![[A^{-}]](/tpl/images/0587/7412/fe74d.png)
= 0.12 M
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The final volume of buffer solution must be 100.00 mL and the final concentration of the weak acid m...
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