Consider a Buffer Solution Containing CH₃COO^Na⁺ and CH₃COOH

Multiple Choice

Consider a buffer solution containing CH₃COO^Na⁺ and CH₃COOH. If you add hydronium (H₃O⁺) until all of the CH₃COO^ is converted into CH₃COOH and then add a little more hydronium, what do you expect to observe?

A) The pH increases.
B) The pH decreases.
C) The pH stays the same.
D) The solution will be neutralized.
E) The pH changes, but it is not possible to determine how it will change.