What is the pH of 0.0125 M of NaHC2O4  pka1 1.250 pka2 4.266 How to determine 1st and 2nd approximation

Chemistry by OpenStax (2015-05-04)
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ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter14: Acid-base Equilibria
Section: Chapter Questions
Problem 74E: The pH of a 0.20-M solution of HP is 1.92. Determine Ka far HF from these data.
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What is the pH of 0.0125 M of NaHC2O4 

pka1 1.250

pka2 4.266

How to determine 1st and 2nd approximation

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