If 25.0 mL of 0.451 M HNO3 solution is titrated with 0.451 M NaOH, Calculate the pH of the solution after each of the following amounts of base have been added. Set up the relevant neutralization reaction equations for each part.
a) Before starting the titration.
b) After adding 15 mL of the base
c) After addition of 25.0 mL of the base
(d) After adding 30 mL of the base