Chapter 14, Problem 12SAQ

A buffer contains ${\text{HCHO}}_{\text{2}}(aq)$ and ${\text{KCHO}}_{\text{2}}(aq)$. Which statement correctly summarizes the action of this buffer?

a. ${\text{HCHO}}_{\text{2}}(aq)$ neutralizes added acid, and ${\text{KCHO}}_{\text{2}}(aq)$ neutralizes added base.

b. Both ${\text{HCHO}}_{\text{2}}(aq)$ and ${\text{KCHO}}_{\text{2}}(aq)$ neutralize added acid.

c. Both ${\text{HCHO}}_{\text{2}}(aq)$ and ${\text{KCHO}}_{\text{2}}(aq)$ neutralize added base.

d. ${\text{HCHO}}_{\text{2}}(aq)$ neutralize added base, and ${\text{KCHO}}_{\text{2}}(aq)$ neutralize added acid.