Answered: What is the [HA] (in mol L-¹) of a…

What is the [HA] (in mol L-¹) of a solution containing 1.439 mol L-¹ of a diprotic acid with pKA1 = 4.86 and PKA2 = 9.38 ? H₂A + H₂O PKA1 H3O+ + HA H3O+ + A²- HA + H₂O PKA2 Answer: 0.014

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter8: Acids And Bases

Section: Chapter Questions

Problem 8.42P

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

What is the [HA] (in mol L-¹) of a solution containing 1.439 mol L-¹ of a diprotic acid with pKA1 = 4.86 and PKA2 = 9.38 ?
PKA1
H₂A + H₂O H3O+ + HA
HA + H₂O=H3O+ + A²-
Answer: 0.014
PKA2

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