The optical rotation of a sample of (+)-2-bromobutane which is 75% optically pure needs to be determined. The percentages of (+) and (-) enantiomers present in the sample needs to be determined. Concept introduction: The movement of the plane of linearly polarized light along the direction of motion when the light passes through the material is termed as optical rotation.

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Chapter 5.2, Problem 5.8TIY

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Interpretation:The optical rotation of a sample of (+)-2-bromobutane which is 75% optically pure needs to be determined. The percentages of (+) and (-) enantiomers present in the sample needs to be determined.

Concept introduction:The movement of the plane of linearly polarized light along the direction of motion when the light passes through the material is termed as optical rotation.

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