Question: A titration is performed in which 50.0 mL of 0.0500 M HCl (aq) is titrated with 0.1000 M NaOH. Calculate the pH (a) at the beginning of the titration (Vb = 0); (b) after addition of 15.0 mL of the base (Vb = 15.0 mL); (c) when Vb = 25.0 mL; and (d) when Vb = 30.0 mL