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

question 71

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 an aqueous solution which is 0.10 M in acetic acid (K_a = 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

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