genent Br Atoms in Space- Google Chrome A https://session.masteringchemistry.com
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genent Br Atoms in Space- Google Chrome A https://session.masteringchemistry.com/myct/itemView?assignmentProblemID-64138495 CHEM 2410 Organic Chemistry I Question 27 Part A Start your analysis by determining the specific rotation loj of pure (S)-naproxen using the information given A 0.500 g/mL solution of pure (S) isomer is measured in a 5.00-cn tube, giving a value of +16.5 Express your answer in degrees [a] Hints My Answers Give Up Review Part Part B This question will be shown after you complete previous que Optical purityExplanation / Answer
1) specific optical rotation = observed optical rotaion/C*0.5=16.5/0.5*0.5=16.5/0.25=+660
ad D+l=100 so D+66=100
2) percentage of optical purity= observed optical roation/specific rotation of pure enantiomer*100=16.5/66*100=25%
3) 1,4 dibromo cyclohecane is meso compound
as cis- and trans-1,4-dibromocyclohexane contain an internal symmetry plane, only two stereoisomers appear. Therefore, they are both meso compounds.
(2R,4S)- 2,4-Dibromopentane and (2S,4R)- 2,4-Dibromopentane is meso isomer.
2R,4S)- 2,4-Dimethylpentane and (2S,4R)- 2,4-Dimethylpentane is meso isomer.
cis-1,3-dimethylcyclohexane is meso isomer. and trans -1,3-dimethylcyclohexane is not
cis-1,2-Dichlorocyclobutane has two chiral carbons, but it has an internal plane of symmetry that bisects the C1-C2 and C3-C4 bonds.
It is a meso compound and is not optically inactive.
trans-1,2-Dichlorocyclobutane has two chiral carbon atoms, and it lacks an internal plane of symmetry
4)
a) OH-H and Cl-H
b) H-OH and H-Cl
C)OH-H and H-Cl
d)H-OH and Cl-H
5)
OH-H and Cl-H
b) H-OH and H-Cl
C)OH-H and H-Cl
d)H-OH and Cl-H
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