1. Henderson-Hasselbach equation a) Calculate the pH of the formate buffer solution containing 0.30 M formic acid and 0.52 M potassium formate. Ka = 1.70 x 10-4 b) Calculate the pH of a buffer solution

1. Henderson-Hasselbach equation a) Calculate the pH of the formate buffer solution containing 0.30 M formic acid and 0.52 M potassium formate. Ka = 1.70 x 10-4 b) Calculate the pH of a buffer solution

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 90QRT: Which of these buffers involving a weak acid HA has the greater resistance to change in pH? Explain...

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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

1. Henderson-Hasselbach equation

a) Calculate the pH of the formate buffer solution containing 0.30 M formic acid and 0.52
M potassium formate. Ka = 1.70 x 10-4

b) Calculate the pH of a buffer solution that contains 0.0416 M sodium dihydrogen
phosphate and 0.0256 M disodium hydrogen phosphate.

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