. Which of the following acid/ conjugate base pairs would function best as a buffer at physiological pH? a Lactic acid / Lactate ion; pKa = 3.86 b Carbonic acid / Bicarbonate ion; pKa = 6.37 c Bicarbonate ion / Carbonate ion; pKa = 10.25 d Dihydrogen phosphate / Monohydrogen phosphate ion; pKa = 6.86 e Acetic acid / Acetate ion; pKa = 4.76
. Which of the following acid/ conjugate base pairs would function best as a buffer at physiological pH? a Lactic acid / Lactate ion; pKa = 3.86 b Carbonic acid / Bicarbonate ion; pKa = 6.37 c Bicarbonate ion / Carbonate ion; pKa = 10.25 d Dihydrogen phosphate / Monohydrogen phosphate ion; pKa = 6.86 e Acetic acid / Acetate ion; pKa = 4.76
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 55P
Related questions
Question
20. Which of the following acid/ conjugate base pairs would function best as a buffer at physiological pH?
a |
Lactic acid / Lactate ion; pKa = 3.86 |
|
b |
Carbonic acid / Bicarbonate ion; pKa = 6.37 |
|
c |
Bicarbonate ion / Carbonate ion; pKa = 10.25 |
|
d |
Dihydrogen phosphate / Monohydrogen phosphate ion; pKa = 6.86 |
|
e |
Acetic acid / Acetate ion; pKa = 4.76 |
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