The relation for calculating \( \mathrm{pH} \) of a solution containing weak acid and its salt i...
The relation for calculating \( \mathrm{pH} \) of a solution containing weak acid and its salt is:
(A) \( \mathrm{pH}=\mathrm{p} K_{a}+\log \frac{\text { [Conjugate base] }}{[\text { Acid }]} \)
(B) \( \mathrm{pH}=\mathrm{p} K_{a}-\log \frac{\text { [Conjugate base] }}{\text { [Acid] }} \)
(C) \( \mathrm{pH}=\mathrm{p} K_{a}+\log \frac{\text { [Conjugate base }]}{[\text { Salt }]} \)
(D) \( \mathrm{pOH}=\mathrm{p} K_{a}-\log \frac{[\text { Acid }]}{[\text { Conjugate base }]} \)
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