Solution X has a pH buffer. Solution Z does not have a pH buffer. The solutions start at the same pH. You add the same amount of acid to each solution. What will happen?
a. The pH of solution X will increase and the pH of solution Z will decrease.
b. The pH of solution X will decrease more than the pH of solution Z.
c. The pH of solution X will decrease and the pH of solution Z will increase.
d. The pH of solution X will decrease less than the pH of solution Z.
