Chemistry, 28.08.2019 19:30 LindaCat78
Abuffer contains the weak acid ha and its conjugate base a−. the weak acid has a pka of 4.82 and the buffer has a ph of 4.25. then, [ha] > [a^-]. true or false?
Answers: 3
![pH=p_{Ka} + log\frac{[Salt]}{[Acid]}](/tpl/images/0206/4478/68856.png)
![4.25=4.82 + log\frac{[A^{-}]}{[HA]}](/tpl/images/0206/4478/9412d.png)
![log\frac{[A^{-}]}{[HA]} = -0.57](/tpl/images/0206/4478/09f51.png)
![\frac{[A^{-}]}{[HA]} = 0.269](/tpl/images/0206/4478/a9243.png)
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Abuffer contains the weak acid ha and its conjugate base a−. the weak acid has a pka of 4.82 and the...
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