Suggested languages for you:

Q.30

Expert-verified
Found in: Page 200

### Organic Chemistry

Book edition 5th
Author(s) Janice Gorzynski Smith
Pages 1256 pages
ISBN 9780078021558

# What is the ee for each of the following mixtures of enantiomers A and B? a. 95% A and 5% B b. 85% A and 15% B

a. The ee is 90%.

b. The ee is 70%.

See the step by step solution

## Enantiomeric excess (ee)

The enantiomeric excess determines the excess amount of any one of the enantiomers (either R or S). It is also termed an optically pure compound.

## Formula to calculate the ee

The formula to calculate the ee is as follows:

.

## Explanation

a. The ee is calculated from the A and B as:

Therefore, the ee for enantiomers is 90%.

b. The ee is calculated from the A and B as:

Therefore, the ee for enantiomers is 70%.