Which solution has the highest pH?
A)a buffer made with 0.10 M acetic acid and 0.01 M sodium acetate
B)a buffer made with 0.10 M acetic acid and 0.10 M sodium acetate
C)a buffer made with 0.01 M acetic acid and 0.10 M sodium acetate
D)a buffer made with 0.01 M acetic acid and 0.01 M sodium acetate
E)All of the buffers have the same pH since they are all made with acetic acid and sodium acetate.

Question

Quizplus · Accepted Answer

The higher the concentration of the conjugate base (in this case, sodium acetate), the higher the pH of the buffer solution. Therefore, option C, which has 0.10 M sodium acetate, will have the highest pH.

Which Solution Has the Highest PH