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A chemist needs a solution buffered at pH 4.30 and can choose from the following acids: A. Chloroacetic acid (K, = 1.35 x 10-3) B. Propanoic acid (K, = 1.30 x 10-5) C. Benzoic acid (K, = 6.40 x 10-5) D. Hypochlorous acid (K. = 3.50 x 10-8) Which of the following will be best suited to make the buffer? Show calculations to support your answer.

A chemist needs a solution buffered at pH 4.30 and can choose from the following acids: A. Chloroacetic acid (K, = 1.35 x 10-3) B. Propanoic acid (K, = 1.30 x 10-5) C. Benzoic acid (K, = 6.40 x 10-5) D. Hypochlorous acid (K. = 3.50 x 10-8) Which of the following will be best suited to make the buffer? Show calculations to support your answer.

Chemistry
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
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A chemist needs a solution buffered at pH 4.30 and can choose from the following acids: A. Chloroacetic acid (K, = 1.35 x 10-3) B. Propanoic acid (K, = 1.30 x 10-5) C. Benzoic acid (K, = 6.40 x 10-5) D. Hypochlorous acid (K. = 3.50 x 10-8) Which of the following will be best suited to make the buffer? Show calculations to support your answer.
Transcribed Image Text:A chemist needs a solution buffered at pH 4.30 and can choose from the following acids: A. Chloroacetic acid (K, = 1.35 x 10-3) B. Propanoic acid (K, = 1.30 x 10-5) C. Benzoic acid (K, = 6.40 x 10-5) D. Hypochlorous acid (K. = 3.50 x 10-8) Which of the following will be best suited to make the buffer? Show calculations to support your answer.
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