Question

Pure msg, a common flavor enhancer, exhibits a specific rotation of +24. calculate the ee of a solution whose [α] is +11.

Answer 1

The ee is the short term for enantiomeric excess. The formula for this is given as:

ee = [α] mixture / [α] pure enantiomer

Thus substituting the given values:

ee = + 11 / + 24

ee = 0.4583 = 45.83%