Concept explainers
The amino acid
(S)-alanine
a. What is the melting point of
b. How does the melting point of a racemic mixture of
c. What is the specific rotation of
d. What is the optical rotation of a racemic mixture of
e. Label each of the following as optically active or inactive: a solution of pure
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Organic Chemistry (6th Edition)
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- A. Give your comment(s) on the following questions below: 1. Are all chiral molecules enantiomers? Why or why not? 2. What is the difference between enantiomers and diastiomers ? 3. What are the differences between stereoisomers, structural isomers and constitutional isomers?arrow_forward4. Identify the isomers below as structural, cis-trans, or enantiomers. 5.Is this molecule a ketose or aldose sugar?arrow_forward36. Indicate the following chemical compound. но OH CH,OH L flavonoid II. aloe-emodin I. aloin IV. coumarine V. taken from Sorreis VI. tannins VII. aglycone of aloin glycoside VIII. taken from Aloe IX. oxymethylantraquinone X. glycoside A) I; I; V; X B) IV; VI; VII C) ; V; VI IX D) II; VII; IX: X E) II; VIII; IX; Xarrow_forward
- O2CCH,CH,-C-CO2 + CH2 NH3 NH3 O2CCH,CH,-C-CO2 + CH2 CH2-C-CO2 + H. phenylalanine -CO2 0,CCH,CH2—CO2 CH2-C-CO2arrow_forwarde Quiz: HW 1: Ch 3: Alkanes AA Quiz: HW 2: Ch 4: Study of Reacti x A Quiz: HW 3: Ch 5: Stereochem A online.butlercc.edu/courses/1479546/quizzes/2495661/take Question 2 If (S)-glyceraldehyde has a specific rotation of -8.7°, what is the specific rotation of (R)- glyceraldehyde? cannot be determined from the information given 0.0° +8.7° -8.7°arrow_forwardMark all chiral center(s) with an asterisk.b. Determine the max number of possible stereoisomers that could be drawn from thisstructure. please explain each step.arrow_forward
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