Problem: Consider a solution that contains 74.0% R isomer and 26.0% S isomer. If the observed specific rotation of the mixture is -88.0°, what is the specific rotation of the pure R isomer?

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Consider a solution that contains 74.0% R isomer and 26.0% S isomer. If the observed specific rotation of the mixture is -88.0°, what is the specific rotation of the pure R isomer?

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Our tutors have indicated that to solve this problem you will need to apply the Enantiomeric Excess concept. You can view video lessons to learn Enantiomeric Excess. Or if you need more Enantiomeric Excess practice, you can also practice Enantiomeric Excess practice problems.