Consider the titration of 100.0 mL of 0.260 M propanoic acid (Ka = 1.310−5) with 0.130 M KOH. Calculate the pH of the resulting solution after each of the following volumes of KOH has been added. (Assume that all solutions are at 25°C.)

(a) 0.0 mL


(b) 50.0 mL


(c) 100.0 mL


(d) 150.0 mL


(e) 200.0 mL


(f) 250.0 mL