Consider the titration of 41.5 mL of 0.213 M HCl with 0.123 M KOH. Calculate the pH of the resulting solution after the following volumes of KOH have been added. (Assume that all solutions are at 25°C.)

(a) 0.0 mL


(b) 10.0 mL


(c) 40.0 mL


(d) 80.0 mL


(e) 100.0 mL