as detailed as possible please

115. Determine the pH at the equivalence point of the titration involving 30.00 mL of a 0.150 mol/L solution of trimethylamine, (CH3)3N(aq), and a 0.150 mol/L solution of the strong monoprotic acid perchloric acid, HClO4(aq). The Ki for trimethylamine is 6.3 x 10-5