Q.30

Expert-verifiedFound in: Page 200

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%.

**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.**

The formula to calculate the ee is as follows:

.

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%.

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