Which of the following could be added to a solution of sodium acetate to produce a buffer?

Question

A.) acetic acid only

B.) acetic acid or hydrochloric acid

C.) potassium acetate only

D.) sodium chloride or potassium acetate

E.) hydrochloric acid only

Answer 1

a buffer is a combination of a weak acid with its conjugate base. Acetic acid and acetate anion is a buffer pair. Theacetic acid can come from acetic acid itself or can be generated in situ from sodium acetate and hydrochloric acid.

NaOOCCH3  + H+  -------  CH3 COOH  so B

Answer 2

The answer is A. I always used that buffer in my lab. It is called Acetate buffer

Answer 3

B. Both a weak acid and a strong acid can provide buffering