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You have 15.00 mL of a 0.100 M aqueous solution of the weak base C5H5N (Kb...

You have 15.00 mL of a 0.100 M aqueous solution of the weak base C5H5N (Kb = 1.50 x 10-9). This solution will be titrated with 0.100 M HCl.

(a) How many mL of acid must be added to reach the equivalence point? (b) What is the pH of the solution before any acid is added?
(c) What is the pH of the solution after 10.00 mL of acid has been added? (d) What is the pH of the solution at the equivalence point of the titration? (e) What is the pH of the solution when 20.00 mL of acid has been added?

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