A 1.369 g sample of N-2-acetamido-2-aminoethane-sulfonic acid potassium salt (ACES¯K+, MW = 220.29 g/mol) is dissolved in 76.76 mL of water. To the solution, 18.44 mL of HCl is added, resulting in a pH of 6.91. Calculate the concentration of the HCl solution. The pKa of ACES is 6.85. [HCI] = Enter numeric value M

A 1.369 g sample of N-2-acetamido-2-aminoethane-sulfonic acid potassium salt (ACES¯K+, MW = 220.29 g/mol) is dissolved in 76.76 mL of water. To the solution, 18.44 mL of HCl is added, resulting in a pH of 6.91. Calculate the concentration of the HCl solution. The pKa of ACES is 6.85. [HCI] = Enter numeric value M

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 79AP

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