In a mixture of a weak acid and its salt, the ratio of P concentrat...

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In a mixture of a weak acid and its salt, the ratio of
P concentration of acid to salt is increased ten-fold.

W The \( \mathrm{pH} \) of the solution
(1) Decreases by one
(2) Increases by one-tenth
(3) Increases by one
(4) Increases ten-fold
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