Answer to Question #110705 in General Chemistry for Catherine Neese

Question

In a buffered solution the weak acid is needed to:
a. react with excess acid
b. make sure it dissolves in water
c. always keep the pH=7
d. react with the excess base

Answer 1

In a buffer solution, role of weak acid is to react with the excess of it's conjugate base.

Thus, option (d) is the correct answer.