A students is asked to prepare a buffer solution at pH 8.60, using one of the following weak acids: HA, Ka = 2.7 x 10-3 HB, Ka = 4.4 x 10-6 HC, Ka = 2.6 x 10-⁹ Which acid should she choose. Why?

Chemistry: The Molecular Science
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ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter15: Additional Aqueous Equilibria
Section: Chapter Questions
Problem 15.ACP
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Which buffer?
A students is asked to prepare a buffer solution at pH 8.60, using
one of the following weak acids:
HA, Ka = 2.7 x 10-3
HB, Ka = 4.4 x 10-6
HC, Ka = 2.6 x 10-⁹
Which acid should she choose. Why?
Transcribed Image Text:A students is asked to prepare a buffer solution at pH 8.60, using one of the following weak acids: HA, Ka = 2.7 x 10-3 HB, Ka = 4.4 x 10-6 HC, Ka = 2.6 x 10-⁹ Which acid should she choose. Why?
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