The Buffer Capacity of a Solution May Be Defined as the Number

Multiple Choice

The buffer capacity of a solution may be defined as the number of moles of H+ that will change the pH of 1.00 L of the buffer by 1.00 pH units. What is the buffer capacity of a solution which is 0.10 M in acetic acid (Ka = 1.8 × 10^-5) and 0.30 M in sodium acetate, in units of mol (H+) per liter?

A) 0.20
B) 0.10
C) 0.087
D) 0.009
E) zero