Which solution would have the greatest buffering capacity?
A)0.574 M HF and 0.312 M NaF
B)0.287 M HF and 0.156 M NaF
C)0.189 M HF and 0.103 M NaF
D)1.15 M HF and 0.624 M NaF
E)They are all buffer solutions and would all have the same capacity.

Question

Quizplus · Accepted Answer

Buffer capacity is dependent on the concentration of both the weak acid and its conjugate base. Therefore, the solution with the highest total concentration of weak acid and conjugate base (HF + NaF) will have the greatest buffering capacity. Option D has the highest total concentration of weak acid and conjugate base.

Which Solution Would Have the Greatest Buffering Capacity