2.3×10−6 and ?a2  = 6.8×10−9. What is the pH of a 0.0500 M solution of H2A? pH=     What are the equilibrium concentrations of H2A and A2− in this solution?

Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter15: Complex Ion And Precipitation Equilibria
Section: Chapter Questions
Problem 10QAP: Calculate [OH-] and pH in a solution in which the hydrogen sulfite ion, HSO3-, is 0.429 M and the...
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For the diprotic weak acid H2A, ?a1 = 2.3×10−6 and ?a2  = 6.8×10−9.

What is the pH of a 0.0500 M solution of H2A?

pH=

 
 

What are the equilibrium concentrations of H2A and A2− in this solution?

[H2A]=                                                       M

 

 

[A2−]=                                                        M

 
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