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Questions  >>  SAT  >>  Chemistry  >>  chemical equilibrium
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Q)

A certain buffer solution contains equal concentration of $X^{-}$ and $HX.K_4$ for $HX$ is $10^{-4}$. The $p^{H}$ of buffer is

$\begin{array}{1 1} (a)\;3 \\ (b)\;8 \\ (c)\;11 \\ (d)\;14\end{array} $

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