You are making a buffer solution in the lab by combining the weak acid H2PO4- with its conjugate base HPO4^2-. The Ka of H2PO4- is 6.2*10^-8. What ratio of the acid and base will you need to combine to generate a buffer with a pH of 7.1?

General, Organic, and Biological Chemistry
7th Edition
ISBN:9781285853918
Author:H. Stephen Stoker
Publisher:H. Stephen Stoker
Chapter10: Acids, Bases, And Salts
Section: Chapter Questions
Problem 10.126EP: What is the pH of a buffer that is 0.175 M in a weak acid and 0.200 M in the acids conjugate base?...
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You are making a buffer solution in the lab by combining the weak acid H2PO4- with its conjugate base HPO4^2-. The Ka of H2PO4- is 6.2*10^-8. What ratio of the acid and base will you need to combine to generate a buffer with a pH of 7.1?
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