Organic Chemistry
Organic Chemistry
7th Edition
ISBN: 9780321803221
Author: Paula Y. Bruice
Publisher: Prentice Hall
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Chapter 21, Problem 60P
Interpretation Introduction

Interpretation:

The percentage of α-D-galactose and β-D-galactose at equilibrium is to be calculated.

Concept Introduction:

The chiral compound shows the property of specific rotation.  Specific rotation is intensive property.

The slow change in optical rotation to an equilibrium value is called mutarotation

Equation for calculating the percentage ,

(Specific rotationatequlibrium)=(fraction of(αDgalactose)equlibrium×Specificrotationof(αDgalactose))+(fraction of(βDgalactose)equlibrium×Specificrotationof(βDgalactose))

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