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CHM233 part 2 - Optical Activity The chemical and physical...

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1 The chemical and physical properties of two enantiomers are identical except in their interaction with chiral substances. They have identical physical properties, except for how they interact with plane-polarized light . Plane-polarized (polarized) light is light that has an electric vector that oscillates in a single plane. Plane-polarized light arises from passing ordinary light through a polarizer. A polarimeter is an instrument that allows polarized light to travel through a sample tube containing an organic compound and permits the measurement of the degree to which an organic compound rotates plane-polarized light. Optical Activity
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Plane-Polarized Light
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3 With achiral compounds, the light that exits the sample tube remains unchanged. A compound that does not change the plane of polarized light is said to be optically inactive . Plane-Polarized Light
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