A 0.0410 L volume of 0.11 M hypobromous acid (HBrO), a weak acid with Ka = 2.8 ✕ 10⁻⁹, is titrated with 0.11 M potassium hydroxide (KOH), a strong base. Determine the pH at the following points in the titration.

(a) before any KOH has been added
(b) after 0.0056 L KOH has been added
(c) after 0.0410 L KOH has been added
(d) after 0.0750 L KOH has been added