What is the pH of a buffer that is 120 M in formic acid, HCHO2 and 0.080 M in potassium formate KCHO2? Ka(HCHO2) = 1.8 x 10-4

Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria
Section17.2: Controlling Ph: Buffer Solutions
Problem 4RC: 4. To prepare a buffer containing CH3CO2H and NaCH3CO2 and having a pH of 5, the ratio of the...
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  1. What is the pH of a buffer that is 120 M in formic acid, HCHO2 and 0.080 M in potassium formate KCHO2? Ka(HCHO2) = 1.8 x 10-4
    • 3.3
    • 5.7
    • 7.4
    • 9.1
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