if the pH at one half the first and second equivalence points of a dibasic acid is 4.80 and 7.34, respectively, what are the values for pKa1 and pKa2?

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.81QE: Write the chemical equation and the expression for the equilibrium constant, and calculate Kb for...
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if the pH at one half the first and second equivalence points of a dibasic acid is 4.80 and 7.34, respectively, what are the values for pKa1 and pKa2?

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