now If 39.44 mL of 0.0917 M NaOH were required to titrate 25.00 mL of an unknown monoprotic weak acid solution, and the pH of this solution was 3.86. calculate: a. The initial molarity of the unknown acid: b. (H']; and c. K₂

now If 39.44 mL of 0.0917 M NaOH were required to titrate 25.00 mL of an unknown monoprotic weak acid solution, and the pH of this solution was 3.86. calculate: a. The initial molarity of the unknown acid: b. (H']; and c. K₂

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 62P

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

NOW
If 39.44 mL of 0.0917 M NaOH were required to titrate 25.00 mL of an
unknown monoprotic weak acid solution, and the pH of this solution was 3.86. calculate:
a. The initial molarity of the unknown acid:
b. [H]: and
c. Ka

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