ORGANIC CHEM PRINT STUDY GDE & SSM
ORGANIC CHEM PRINT STUDY GDE & SSM
4th Edition
ISBN: 9781119810650
Author: Klein
Publisher: WILEY
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Chapter 25.2, Problem 9CC
Interpretation Introduction

Interpretation:

Amino acid having same pI values need to be identified.

Concept introduction:

Amino acids at a particular pH do not migrate in an electric field.  This pH is known as the isoelectric point.  The isoelectric point is also known as isoionic point.  At this isoelectric point the amino acid is neutral.  This means that the zwitterion form predominates more over the other forms.  pI is the isoelectric point and this can be given by average of the pKa.

pI=pKa1+pKa22

If two compounds need to have same pI value means, both the compounds must have a similar structure and same pKa values.  Possibly arrangement might be different.

To identify: the two amino acids which are expected to have same pI value.

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ORGANIC CHEM PRINT STUDY GDE & SSM

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