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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Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.91QP: A 50.0-mL sample of a 0.100 M solution of NaCN is titrated by 0.200 M HCl. Kb for CN is 2.0 105....
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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
Transcribed Image Text: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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