Outline the ph curve for the titration

Question

Outline the pH curve for the titration is the 20.0 mL of a 0.150 M solution of a weak acid after completing the calculations below, HA (K_a = 6.3 x 10^-5). With an o.150M KOH. Indicate the pH at (a) the beginning of the titration(0.0 mL titrant), and after the addition of (b) 10.0 mL, (c) 19.0mL, (d) 19.9 mL, (e) 20.0 mL, (f) 20.1 mL, and (g) 30.0 mL of the titrant.