An analytical chemist is titrating 143.8 mL of a 0.1800M solution of piperidine (C5H0NH) with a 0.5000M solution of HNO3. The pK, of piperidine is 2.89. Calculate the pH of the base solution after the chemist has added 20.3 mL of the HNO3 solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO3 solution added. Round your answer to 2 decimal places. 0