A) Increases by one
B) Decreases by one
C) Decreases ten fold
D) Increases ten fold
Correct Answer: A
Solution :
Mixture of acetic acid and sodium acetate is an acidic buffer. Hence, from Henderson equation, \[pH{{=}_{p}}{{K}_{a}}+\log \frac{[Salt]}{[Acid]}\] On increasing [Salt] ten times of that of [Acid], the pH will increase by one.
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