Chapter 14, Problem 65QAP

Follow the directions of Question 64. Consider two beakers:

Beaker A has a weak acid $\left(K_{\text{a}}=1\times {10}^{-5}\right)$.

Beaker B has HCI.

The volume and molarity of each acid in the beakers are the same. Both acids are to be titrated with a 0.1 M solution of NaOH.

(a) Before titration starts (at zero time), the pH of the solution in Beaker A is the pH of the solution in Beaker B.

(b) At half-neutralization (halfway to the equivalence point), the pH of the solution in Beaker A the

pH of the solution in Beaker B.

(c) When each solution has reached its equivalence point, the pH of the solution in Beaker A the pH of the solution in Beaker B.

(d) At the equivalence point, the volume of NaOH used to titrate HCI in Beaker B the volume of NaOH used to titrate the weak acid in Beaker A.