he following data was generated by running two TLC plates with four compounds - A, B, C & D (two on each plate). Plate 1, dist. traveled by compound A = 4.0 cm, dist. traveled by compound B = 6 cm, dist. traveled by solvent = 12 cm

he following data was generated by running two TLC plates with four compounds - A, B, C & D (two on each plate). Plate 1, dist. traveled by compound A = 4.0 cm, dist. traveled by compound B = 6 cm, dist. traveled by solvent = 12 cm

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

The specific rotation of the pure enantiomer of a compound (literature value) is -15 degree. If the observed specific rotation of the enantiomer after resolving from Eacemic
mixture is -9 degree, what is the percentage of the major enantiomer in the resolved sample?
O 20%
• 60
O 90%
O 80%

The following data was generated by running two TLC plates with four compounds - A, B, C & D (two on each plate).
Plate 1, dist. traveled by compound A = 4.0 cm, dist. traveled by compound B = 6 cm, dist. traveled by solvent = 12 cm
Plate 2, dist. traveled by compound C = 2.5 cm, dist. traveled by compound D = 5 cm, dist. traveled by solvent = 10 cm
Based on the Rf value calculations, the identical compounds are:
O A & C
OC&D
O B & D
B & C

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