Explain phenylalanine has a specific rotation

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Reference no: EM13209207

(R)-phenylalanine has a specific rotation of -70.0 degrees; (S)-phenylalanine has a specific rotation of +70.0 degrees. The optical activity of a sample of phenylalanine was measured, and a specific rotation of -56.0 was found.

a. Which enantiomer is in excess?

b. What is the enantiomeric excess (%ee)?

c. What is the percentage of (R)-phenylalanine present in this mixture?

d. What is the percentage of (S)-phenylalanine present in this mixture?

Reference no: EM13209207

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