Calculate the pH at each stage in the titration for the addition of 0.150 m HCl(aq) to 25.0 mL of 0.110 m NaOH(aq):

(a) Initially;

(b) After the addition of 5.0 mL of acid;

(c) After the addition of a further 5.0 mL;

(d) At the stoichiometric point;

(e) After the addition of 5.0 mL of acid beyond the stoichiometric point;

(f) After the addition of 10.0 mL of acid beyond the stoichiometric point.