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Which of the following statements correctly pertains to a pair of enantiomers? A

ID: 818429 • Letter: W

Question

Which of the following statements correctly pertains to a pair of enantiomers?                                A.            They rotate the plane of polarized light by exactly the same amount and in opposite directions.                             B.            They rotate the plane of polarized light by differing amounts and in opposite directions.                             C.            They rotate the plane of polarized light by differing amounts and in the same direction.                             D.            They have different melting points.                             E.            They have the same melting point, but they have different boiling points.



   If a mixture contains 75% of one compound and 25% of its enantiomer, what is the enantiomeric excess, ee, of the mixture?                                A.            100                             B.            75                             C.            50                             D.            25                             E.            3




Which of the following statements correctly pertains to a pair of enantiomers? They rotate the plane of polarized light by exactly the same amount and in opposite directions. They rotate the plane of polarized light by differing amounts and in opposite directions. They rotate the plane of polarized light by differing amounts and in the same direction. They have different melting points. They have the same melting point, but they have different boiling points.



   If a mixture contains 75% of one compound and 25% of its enantiomer, what is the enantiomeric excess, ee, of the mixture?                                A.            100                             B.            75                             C.            50                             D.            25                             E.            3




If a mixture contains 75% of one compound and 25% of its enantiomer, what is the enantiomeric excess, ee, of the mixture? 100 75 50 25 3                             A.            They rotate the plane of polarized light by exactly the same amount and in opposite directions.                             B.            They rotate the plane of polarized light by differing amounts and in opposite directions.                             C.            They rotate the plane of polarized light by differing amounts and in the same direction.                             D.            They have different melting points.                             E.            They have the same melting point, but they have different boiling points.



   If a mixture contains 75% of one compound and 25% of its enantiomer, what is the enantiomeric excess, ee, of the mixture?                                A.            100                             B.            75                             C.            50                             D.            25                             E.            3




Explanation / Answer

They rotate the plane of polarized light by exactly the same amount and in opposite directions.


C. 50 is the enantiomeric excess



A. They rotate the plane of polarized light by exactly the same amount and in opposite directions.


C. 50 is the enantiomeric excess

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