Chapter 5.12, Problem 35P

(a)

Interpretation Introduction

Interpretation:

Common taste enhancer pure MSG has a specific rotation of +24.

The ee of a solution whose [ $\alpha$ ] is +10, needs to be calculated.

Concept Introduction :

If one enantiomer dominates the other in a mixture of two, the excess of that enantiomer is then stated as a percentage of the total amount of that enantiomer. It also gives some information about the mixture's overall optical rotation.

(b)

Interpretation Introduction

Interpretation:

Common taste enhancer pure MSG has a specific rotation of +24.

If the ee of a solution of MSG is 80%, [ $\alpha$ ] for this solution, needs to be calculated.

Concept Introduction :

if one enantiomer dominates the other in a mixture of two. The excess of that enantiomer is then stated as a percentage of the total amount of that enantiomer. It also gives some information about the mixture's overall optical rotation.