(- )- Mandelic acid has a specific rotation of - 158°. What would be the specific rotation of a solution which contains 50% (- )- mandelic acid and 50% (+ )- mandelic acid? A. 0° B. + 79° C. The value must be experimentally determined D. - 79°

(- )- Mandelic acid has a specific rotation of - 158°. What would be the specific rotation of a solution which contains 50% (- )- mandelic acid and 50% (+ )- mandelic acid? A. 0° B. + 79° C. The value must be experimentally determined D. - 79°

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter92: Polarimetry

Section: Chapter Questions

Problem 3P

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Question

(- )- Mandelic acid has a specific rotation of - 158°. What would be the specific
rotation of a solution which contains 50% (- )- mandelic acid and 50% (+ )-
mandelic acid?
А. 0°
В. + 79°
O C. The value must be experimentally determined
D. - 79°

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