The pH of an aqueous solution of CH3COONa of concentration C(M) is given by

1 2 pK w + 1 2 pK a + 1 2 log ⁡ C

1 2 pK w + 1 2 pK a + 1 2 log ⁡ C

7 − 1 2 pK a − 1 2 log ⁡ C

1 2 pK w + 1 2 pK b + 1 2 log ⁡ C

1 2 pK w − 1 2 pK b − 1 2 log ⁡ C

1 2 pK w + 1 2 pK a + 1 2 log ⁡ C

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The pH of an aqueous solution of CH₃COONa of concentration C(M) is given by

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$7 - \frac{1}{2} {pK}_{a} - \frac{1}{2} \log C$

$\frac{1}{2} {pK}_{w} + \frac{1}{2} {pK}_{b} + \frac{1}{2} \log C$

$\frac{1}{2} {pK}_{w} - \frac{1}{2} {pK}_{b} - \frac{1}{2} \log C$

$\frac{1}{2} {pK}_{w} + \frac{1}{2} {pK}_{a} + \frac{1}{2} \log C$

answer is D.

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In case of hydrolysis of salt of weak acid and strong base, the pH is given by $\frac{1}{2} {pK}_{W} + \frac{1}{2} {pK}_{a} + \frac{1}{2} \log C$

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