A 100 mL of 0.1 M amino acid at pH 1.0, whose pka for the carboxyl group is less than the pKa of the R-group, was titrated with NaOH solution. The pH wasmonitored, and the results were plotted on a graph, as shown below. The key points in the titration are designated A to G.12108pH 6420AB0.5сDEF1.522.5Equivalents of OH1. What is the possible identity of the amino acid? [Select]2. What is the isoelectric point of the amino acid? [Select]3. What is the pka corresponding to the deprotonation of the alpha-amino group? [Select]4. Region/ point where the amino acid is predominantly present as a (-2)-charged species. [Select]5. The effective buffering range for the amino acid in the basic region. [Select]G3

The amino acids carry different ionizable groups. The ionic form of the amino acids depends upon the…

Answered: A 100 mL of 0.1 M amino acid at pH 1.0,…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Number 3
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