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pH of a Solution

Calculate p...

Question

Calculate $p H$ of a solution containing $0.1 M H A (K_{a} = 10^{- 5})$ and $0.1 M H C l$ .

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Solution

Concentration of both solutions is $0.1 M$ .
$p H = - l o g [H^{+}]$
$= - l o g [0.1]$
$= - l o g [10^{- 1}]$
$p H = 1$

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