If the specific rotation of the (R)-enantiomer of a compound is −4.8°, what is the specific rotation for the racemic mixture of the compound?
A) +4.8°
B) −4.8°
C) 0°
D) +9.6°

Question

Quizplus · Accepted Answer

The specific rotation of the racemic mixture is always 0° because the rotation of the (R)-enantiomer is canceled out by the rotation of the (S)-enantiomer, resulting in no overall rotation.

If the Specific Rotation of the (R)-Enantiomer of a Compound