Interpretation:
The direction in which the given mixture will rotate the plane-polarized light is to be determined. The enantiomeric excess of the mixture is to be calculated.
Concept introduction:
The ability of a mixture of enantiomers to rotate the plane polarized light is governed by the percentage of the enantiomer which is in excess. If a given mixture is excess in the (+) enantiomer, then the rotation of the plane polarized light will be in the (+) direction.
If a mixture contains unequal amounts of the (+) and (-) enantiomers, it will be optically active. Such a type of mixture is considered as being a certain percentage racemic, and the remaining percentage is called the enantiomeric excess (ee).
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Organic Chemistry: Principles And Mechanisms: Study Guide/solutions Manual (second)
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- Explain thisarrow_forwardDraw both enantiomers of clopidogrel (trade name Plavix), a drug given to prevent the formation of blood clots in persons who have a history of stroke or coronary artery disease. Plavix is sold as a single enantiomer with the S configuration. Which enantiomer is Plavix?arrow_forwardHow to separate a racemic mixture into its component enantiomers ?arrow_forward
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