An amphoteric buffer solution in which conc. of $H^{+}\ and\ HX$ is same. The value of $K_{a}\ of\ HX\ is\ 10^{- 8}$, then pH of buffer solution is

Question

Dr. Abubacker · Accepted Answer

(b)
We know that,
$pH = pK_{a} + \log\frac{\lbrack salt\rbrack}{\lbrack acid\rbrack}$
or $pH = - \log{10^{- 8} + \log\frac{1}{1}}$
($\because\lbrack salt\rbrack = \lbrack acid\rbrack$)
or $pH = 8$

Q. An amphoteric buffer solution in which conc. of $H^{+}\ and\ HX$ is same. The value of $K_{a}\ of\ HX\ is\ 10^{- 8}$, then pH of buffer solution is

Explanation

Reviewed by Dr. Abubacker

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