4. Answer the following questions using the below titration curve for H3PO4 (a triprotic acid). Thetitrant being added to the acid is NaOH.14Hd1210006400.51.5Equivalents OH™B) What is the approximate pKa, value of HPO42-?2A) Label all of the approximate pka points on the above curve.C) What is the dominant species of the titration mixture at pH = 4.5?2.53

Titration of NaOH versus H3PO4 ( triprotic acid) , the titration curve is given in the above…

4. Answer the following questions using the below titration curve for H3PO4 (a triprotic acid). The titrant being added to the acid is NaOH. 14 Hd 12 10 00 6 4 2 0 0 0.5 1.5 Equivalents OH B) What is the approximate pKa value of HPO4²-? 2 A) Label all of the approximate pka points on the above curve. C) What is the dominant species of the titration mixture at pH = 4.5? 2.5 3

4. Answer the following questions using the below titration curve for H3PO4 (a triprotic acid). The titrant being added to the acid is NaOH. 14 Hd 12 10 00 6 4 2 0 0 0.5 1.5 Equivalents OH B) What is the approximate pKa value of HPO4²-? 2 A) Label all of the approximate pka points on the above curve. C) What is the dominant species of the titration mixture at pH = 4.5? 2.5 3

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter16: Reactions Between Acids And Bases

Section: Chapter Questions

Problem 16.55QE

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