Consider the titration of 40.00 mL of 0.10 M piperidine (K_b= 1.3 X 10^-5) that is titrated with 0.10 M HCl. Represent piperidine as B and its conjugate acid as BH⁺.

Calculate the pH of the solution after the addition of 0.00 mL of 0.10 M HCl (start of titration).

Calculate the pH of the solution after the addition of 20.00 mL of 0.10 M HCl.

Calculate the pH of the solution after the addition of 40.00 mL of 0.10 M HCl.