To the right are two enantiomeric natural products with vastly different olfactory properties. I find this example of enantiomeric pairs particularly intriguing, as I love caraway and rye but loathe searment:Answer the questions below with the understanding that an optically pure solution of the (-)-enantiomer of carvone rotates light counterclockwise 60*.a. what would be the observed optical rotation of a solution comprised of a 3:1 ratio of the (+) to (-) enantiomers of carvone?b. a different solution of both carvone enantiomers exhibits an observed optical rotation of -10*. determine the enantiomeric excess for this solution.c. which enantiomer (R or S) is in excess in the solution from (b)? how do you know?d. using your answer (b) above, calculate the actual percentages of each enantiomer in the solution. 3. To the right are two enantiomeric naturalproducts with vastly different olfactoryproperties. I find this example of enantiomericpairs particularly intriguing, as I love carawayand rye, but loathe spearmint:Answer the questions below, with theunderstanding that an optically pure solution ofthe (-)-enantiomer of carvone rotates lightcounterclockwise 60°.|(R)-carvonespearmint(S)-carvonecarawaya. What would be the observed optical rotation of a solution comprised of a 3:1 ratioof the (+) to (-) enantiomers of carvone?b. A different solution of both carvone enantiomers exhibits an observed opticalrotation of -10°. Determine the enantiomeric excess for this solution.c. Which enantiomer (R or S) is in excess in the solution from (b)? How do youknow?d. Using your answer from (b) above, calculate the actual percentages of eachenantiomer in the solution.

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Answered: To the right are two enantiomeric…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter14: Elimination

Section: Chapter Questions

Problem 40CTQ

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To the right are two enantiomeric natural products with vastly different olfactory properties. I find this example of enantiomeric pairs particularly intriguing, as I love caraway and rye but loathe searment:

Answer the questions below with the understanding that an optically pure solution of the (-)-enantiomer of carvone rotates light counterclockwise 60*.

a. what would be the observed optical rotation of a solution comprised of a 3:1 ratio of the (+) to (-) enantiomers of carvone?

b. a different solution of both carvone enantiomers exhibits an observed optical rotation of -10*. determine the enantiomeric excess for this solution.

c. which enantiomer (R or S) is in excess in the solution from (b)? how do you know?

d. using your answer (b) above, calculate the actual percentages of each enantiomer in the solution.

3. To the right are two enantiomeric natural
products with vastly different olfactory
properties. I find this example of enantiomeric
pairs particularly intriguing, as I love caraway
and rye, but loathe spearmint:
Answer the questions below, with the
understanding that an optically pure solution of
the (-)-enantiomer of carvone rotates light
counterclockwise 60°.
|(R)-carvone
spearmint
(S)-carvone
caraway
a. What would be the observed optical rotation of a solution comprised of a 3:1 ratio
of the (+) to (-) enantiomers of carvone?
b. A different solution of both carvone enantiomers exhibits an observed optical
rotation of -10°. Determine the enantiomeric excess for this solution.
c. Which enantiomer (R or S) is in excess in the solution from (b)? How do you
know?
d. Using your answer from (b) above, calculate the actual percentages of each
enantiomer in the solution.

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