Consider the benzoic acid/sodium benzoate buffer described in the previous probl

Question

Consider the benzoic acid/sodium benzoate buffer described in the previous problem. If NaOH is added to this buffer, which of the following changes will occur?

A. [benzoic acid] will decrease and [sodium benzoate] will increase.

B. [benzoic acid] will increase and [sodium benzoate] will stay the same.

C. [benzoic acid] will stay the same and [sodium benzoate] will decrease.

D. [benzoic acid] will stay the same and [sodium benzoate] will increase.

E. [benzoic acid] will decrease and [sodium benzoate] will stay the same.

Explanation / Answer

if you add a base, the conjugate base will increase, the acid will decrease (will get neutralized)

then

A. [benzoic acid] will decrease and [sodium benzoate] will increase.

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