Ascorbic acid is a diprotic acid with pKa1 =4,l and pK22 = 11.8. You have an ascorbate buffer with pH 11.2. What is the buffer range of this buffer? a 10.2 to 12.2 b. 3.1 to 5.1 10.8 to 12.8 d 10,7 to 11.7 11.3 to 12.3

Ascorbic acid is a diprotic acid with pKa1 =4,l and pK22 = 11.8. You have an ascorbate buffer with pH 11.2. What is the buffer range of this buffer? a 10.2 to 12.2 b. 3.1 to 5.1 10.8 to 12.8 d 10,7 to 11.7 11.3 to 12.3

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 79AP

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Question

Ascorbic acid is a diprotic acid with pka1 = 4.1 and pKa2 = 11.8. You have an ascorbate bufferwith pH 11.2. What is the buffer range
of this buffer?
a
10.2 to 12.2
b.
3.1 to 5.1
10.8 to 12.8
10,7 to 11.7
11.3 to 12.3

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