1F1QAIR spectroscopy can be helpful in proving that limonene is optically active but it is not always necessary touse IR spectroscopy in order to determine whether a molecule is optically active. Sometimes looking at themolecule's physical properties can help to determine whether it is optically active.3. If a sample is determined to be 75% of the (+) enantiomer, then what is the enantiomeric excess?Answer question hereI4. An experiment is performed were the specific rotation was determined to be +52° for the resultingisolation (note this is not the observed rotation). If the enantiomerically pure compound has a literaturerotation of +97°, then what is the percent of each enantiomer in the isolated mixture?Answer question here5. Can you determine the percent R and S from the information given in questions 4? Explain.2F2WS#320F3EDS4$4F4RLL%5F5TGMacBook Air^6F6Y&7HF7U*8DIIF8

“Since you have posted multiple questions, we will provide the solution only to the first question…

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3. If a sample is determined to be 75% of the (+) enantiomer, then what is the enantiomeric excess? Answer question here I

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter6: Alkanes & Alkenes

Section: Chapter Questions

Problem 21E

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Concept explainers

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.

Question

1
F1
Q
A
IR spectroscopy can be helpful in proving that limonene is optically active but it is not always necessary to
use IR spectroscopy in order to determine whether a molecule is optically active. Sometimes looking at the
molecule's physical properties can help to determine whether it is optically active.
3. If a sample is determined to be 75% of the (+) enantiomer, then what is the enantiomeric excess?
Answer question here
I
4. An experiment is performed were the specific rotation was determined to be +52° for the resulting
isolation (note this is not the observed rotation). If the enantiomerically pure compound has a literature
rotation of +97°, then what is the percent of each enantiomer in the isolated mixture?
Answer question here
5. Can you determine the percent R and S from the information given in questions 4? Explain.
2
F2
W
S
#3
20
F3
E
D
S4
$
4
F4
R
LL
%
5
F5
T
G
MacBook Air
^
6
F6
Y
&
7
H
F7
U
*
8
DII
F8

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