Question

66. Consider the curve shown here for the titration of a weak base with a strong acid and answer each question. pH 6 No 0 10 20 30 40 50 Volume of acid added (mL) a. What is the pH and what is the volume of added acid at the equivalence point? b. At what volume of added acid is the pH calculated by work- ing an equilibrium problem based on the initial concentra- tion and K of the weak base? c. At what volume of added acid does pH = 14 - PK? d. At what volume of added acid is the pH calculated by work- ing an equilibrium problem based on the concentration and K, of the conjugate acid? e. Beyond what volume of added acid is the pH calculated by focusing on the amount of excess strong acid added?