Answered: What is the pH of a 0.950 M solution of…

What is the pH of a 0.950 M solution of Na2HPO4? H3PO4 is a weak polyprotic acid with Ka1 = 7.2×10‒3, Ka2 = 6.3×10‒8, and Ka3 = 4.2×10‒13.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter14: Acids And Bases

Section14.5: Ionization Constants Of Acids And Bases

Problem 14.12CE

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Question

What is the pH of a 0.950 M solution of Na₂HPO₄? H₃PO₄ is a weak polyprotic acid with K_a1= 7.2×10^‒3, K_a2= 6.3×10^‒8, and K_a3= 4.2×10^‒13.

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