A chemist needs to prepare a solution buffered at pH 4.30 using one of the following acids

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A chemist needs to prepare a solution buffered at pH 4.30 using one of the following acids (and its sodium salt):

a. chloroacetic acid (K = 1.35 x 10-) b. propanoic acid (K = 1.3 x 10-5) c. benzoic acid (K = 6.4 x 10-5) d.

Calculate the ratio of [HA]/[A] required for each system to yield a pH of 4.30. Which system will work best?

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Chemical Principles

ISBN: 9780618946907

6th Edition

Authors: Steven S Zumdahl

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