Draw the structure of

Question

The specific rotation of (S)-2-iodobutane is +15.90°

(a) Draw the structure of (S)-2-iodobutane.

(b) Predict the specific rotation of (R)-2-iodobutane.

(c) Determine the percentage composition of a mixture of (R)- and (S)-2-iodobutane with a specific rotation of-7.95°.