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0.270 M monoprotic weak acid solution has a pH of 2.50. What is the pKa of this acid? a. 4.43 b. 1.93 c. 5.57 d. 9.57

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 103AP

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Question

0.270 M monoprotic weak acid solution has a pH of 2.50. What is the pKa of this acid?

a. 4.43

b. 1.93

c. 5.57

d. 9.57

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