4) 50.0 mL of a 0.25 M solution of the weak acid 8-HQ is titrated with 0.50 M NaOH. Calculate the expected pH when each of the following volumes of the base solution have been added. a. 12.5 mL b. 25.0 mL 8-HQ: pkal pKa2 C. 37.5 mL 4.94 9.82

4) 50.0 mL of a 0.25 M solution of the weak acid 8-HQ is titrated with 0.50 M NaOH. Calculate the expected pH when each of the following volumes of the base solution have been added. a. 12.5 mL b. 25.0 mL 8-HQ: pkal pKa2 C. 37.5 mL 4.94 9.82

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter15: Acid-base Equilibria

Section: Chapter Questions

Problem 88AE: Consider die titration of 50.0 mL of 0.10 M H3A (Ka1 = 5.0 104, Ka2 = 1.0 108, Ka3 = 1.0 1012)...

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4) 50.0 mL of a 0.25 M solution of the weak acid 8-HQ is titrated with 0.50 M NaOH. Calculate the
expected pH when each of the following volumes of the base solution have been added.
a.
12.5 mL
b. 25.0 mL
8-HQ:
pkal
pKa2
C.
37.5 mL
4.94
9.82

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