On dilution,the pH of CH_3COONa solution: | vedclass

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(A) $CH_3COONa$ is a salt of a strong base $(NaOH)$ and a weak acid $(CH_3COOH)$.The $pH$ of a salt of a weak acid and strong base is given by the for

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Decreases

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(A) $CH_3COONa$ is a salt of a strong base $(NaOH)$ and a weak acid $(CH_3COOH)$.The $pH$ of a salt of a weak acid and strong base is given by the formula: $pH = \frac{1}{2} [pK_w + pK_a + \log C]$.On dilution,the concentration $C$ decreases.As $C$ decreases,$\log C$ becomes more negative,which leads to a decrease in the $pH$ value.Therefore,the $pH$ of the solution decreases.

On dilution,the $pH$ of $CH_3COONa$ solution:

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