A diprotic base (B) has pK, values of 3.36 (pKpi ) and 6.72 (pKg2).Which of the equalities is true when the pH is 7.28?Which of the equalities is true when the pH is 10.64?[BH*| = [B][BH3*1= [BH* |O IBH; *1 = [B]O IBH;*| = [BH* ][BH*] = [B]O IBH;*| = [B]What is the predominant species of B at pH 4.37?What is the predominant species of B at pH 9.10?BH;*BH*BH+вВBH?*What is the predominant species of B at pH 12.77?ВBH3*BH*

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A diprotic base (B) has pk, values of 3.36 (pKh1) and 6.72 (pK2).

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter16: Principles Of Chemical Reactivity: The Chemistry Of Acids And Bases

Section: Chapter Questions

Problem 116IL: Amino acids are an important group of compounds. At low pH, both the carboxylic acid group (CO2H)...

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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

A diprotic base (B) has pK, values of 3.36 (pKpi ) and 6.72 (pKg2).
Which of the equalities is true when the pH is 7.28?
Which of the equalities is true when the pH is 10.64?
[BH*| = [B]
[BH3*1= [BH* |
O IBH; *1 = [B]
O IBH;*| = [BH* ]
[BH*] = [B]
O IBH;*| = [B]
What is the predominant species of B at pH 4.37?
What is the predominant species of B at pH 9.10?
BH;*
BH*
BH+
в
В
BH?*
What is the predominant species of B at pH 12.77?
В
BH3*
BH*

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