A: A 50.0 mL volume of 0.15 M HBr is titrated with 0.25 M KOH. Calculate the pH after the addition of 11.0mL of KOH.
B: A 75.0 mL colume of 0.200 M NH3 (Kb=1.8x10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 27.0mL of HNO3.
C: A 52.0mL volume of 0.35M CH3COOH (Ka=1.8x10^-5) is titrated with 0.40 M NaOH. Calculate the pH after the addition of 33.0mL of NaOH.