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What is the percent composition of a mixture of (S)-(+)-2-butanol, α= +13.52°, and (R)-(-)-2-butanol, α = -13.52°, with a specific rotation α = +6.76°?

What is the percent composition of a mixture of (S)-(+)-2-butanol, α= +13.52°, and (R)-(-)-2-butanol, α = -13.52°, with a specific rotation α = +6.76°? Correct Answer 25%(R) 75%(S)

The specific optical rotation of a sample, , is calculated using the equation = α/cl, where α is the observed rotation, c is the concentration (in g/mL), and l is the pathlength (in dm). is a constant for a sample.

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