Answer
See below
Work Step by Step
The titration curve begins at pH = 13.00 and drops
slowly as HCl is added. Just before the equivalence
point (when 30.0 mL of acid has been added), the
curve falls steeply. The pH at the equivalence point is
exactly 7. Just after the equivalence point, the curve
flattens again and begins to approach the final pH of
just over 1.0. The total volume at the equivalence
point is 60.0 mL.
