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1. In the following molecule, indicate each of the chiral carbon atoms (put a star or arrow next to it) and calcula...
How many chiral carbon atoms exist in the following compound? (Fill in a number) How many...
How many chiral carbon atoms exist in the following compound?
(Fill in a number)
How many possible stereoisomers are there of dextrose, an
organic compound found in Lactaid and also in blood-sugar in
hospital IVs? (Fill in a number)
Is the letter "J" chiral or achiral?
Achiral
Chiral
How many chiral carbon atoms exist in 5-chloro-1-pentanol? (Fill
in a number)
How many chiral carbon atoms exist in 3-chloro-2-pentanol? (Fill
in a number)
How many possible stereoisomers are there of 2-propanol?...
B. STEREOISOMERS Star the chiral carbon in each of the following molecules. Then indicate how many...
B. STEREOISOMERS Star the chiral carbon in each of the following molecules. Then indicate how many forms exist for those compounds with at least one chiral carbon. OH OH OH OH O CH3 a) b) HOC2- CH-CH-CH-CH-CH CH3-CHCH2OH OH c) CHCH3 d) CH3CCH2CH3
How many chiral carbon atoms does each molecule have and how many total stereoisomers are possible?...
How many chiral carbon atoms does each molecule have and how
many total stereoisomers are possible?
a. CH3CHCHCHCH3 CH2CH3 number of chiral carbon atoms number of total possible stereoisomers OH b. CH3CHCH2CHCH; CH3 number of chiral carbon atoms 2 number of total possible stereoisomers 4 OH O c. HOCH CHCHÖCH,OH OH number of chiral carbon atoms number of total possible stereoisomers
1. a) (2 points) The Fisher projection of molecule A reveals that it has three chiral...
1. a) (2 points) The Fisher projection of molecule A reveals that it has three chiral carbons. What is the maximum number of stereoisomers that a molecule with three chiral carbons can have? b) (18 points) Even though molecule A has three chiral carbon atoms, there are only four stereoisomers: A, B, C, and D. Explain why so few stereoisomers exist, using structures as part our answer. Your answer should take your answer to a) into account. CH,OH CH2OH CH...
3. (4 pts) Complete the Fischer projection drawn below by adding the four substituents to the chiral carbon of (s)...
3. (4 pts) Complete the Fischer projection drawn below by adding the four substituents to the chiral carbon of (s)-2-methyl-3-bromo-hexane. 4. (4 pts) Draw a wedge and dash structure representing (1R 2R,3S)-1,2- dichloro3-ethylcyclohexane. 5. (4pts) 2-bromobutane is shown below. Is this (R)-2-bromobutane or (S)-2 bromobutane? 6. (6 pts) For each chiral carbon in ascorbic acid (vitamin C), shown below, assign Ror S to each stereocenter. How many stereoisomers of ascorbic acid are possible? OH HO ОН 7. (9 pts) (Are...
8. Indicate whether each of the following statements is true or false. If a statement is...
8. Indicate whether each of the following statements is true or false. If a statement is false, explain why a) Two structural isomers may be chiral. : True b) A compound must be chiral in order to have an enantiomer. True c) A chiral compound with an asymmetric carbon atom designated always has a positive optical rotation. False (R) as d) Mirror-image molecules are always enantiomers. False chiral. False e) All compounds with asymmetric carbon atoms are f)The relative configuration...
5-26 For each structure, 1. star (*) any asymmetric carbon atoms. 2. label each asymmetric carbon...
5-26 For each structure, 1. star (*) any asymmetric carbon atoms. 2. label each asymmetric carbon as (R) or (S). draw any internal mirror planes of symmetry. label the structure as chiral or achiral. label any meso structures. We were unable to transcribe this image
Enter the correct answers in the boxes below. 1. A chiral carbon must have a geometry...
Enter the correct answers in the boxes below. 1. A chiral carbon must have a geometry and (2 pts) * 2. If a chiral compound rotates plane polarized light counterclockwise, it is said to be (2 pts) 3. For each compound below, identify all chiral centers by dragging asterisks (*) below to the correct position(s), then indicate whether the compound is optically active by deleting the wrong option. (4 pts) Optically active? OH CHCH3 (a) yes no (b) OH yes...
3. Diastereomers and Meso Forms. When a molecule has two or more stereogenic centers, stereoisomers that...
3. Diastereomers and Meso Forms. When a molecule has two or more stereogenic centers, stereoisomers that are not mirror images can exist; these are called diastereoisomers. Within this general class, there are special types of stereoisomers that are always optically inactive and are called meso forms. Construct a model with four different colored balls about a carbon center. Construct another identical to the first and verify this by the superimposition test. Now remove the same colored balls, blue (C from...
FOTO UV 1. Which of the molecules shown can exhibit optical isomerism? Use an arrow to...
FOTO UV 1. Which of the molecules shown can exhibit optical isomerism? Use an arrow to indicate the chiral center in each optically active molecule. OH NH2 CH3-CH-COOH glycine CH3CH-COOH lactic acids ОН row S1 HOCH CH-CH2OH cibo no glycerol DUO 2. In this experiment, you found that a molecule with one chiral center has two optical isomers, and a com- pound with two chiral centers has four optical isomers. How many optical isomers are possible for a com- pound...
B. STEREOISOMERS Star the chiral carbon in each of the following molecules. Then indicate how many forms exist for those compounds with at least one chiral carbon. OH OH OH OH O CH3 a) b) HOC2- CH-CH-CH-CH-CH CH3-CHCH2OH OH c) CHCH3 d) CH3CCH2CH3
How many chiral carbon atoms does each molecule have and how
many total stereoisomers are possible?
a. CH3CHCHCHCH3 CH2CH3 number of chiral carbon atoms number of total possible stereoisomers OH b. CH3CHCH2CHCH; CH3 number of chiral carbon atoms 2 number of total possible stereoisomers 4 OH O c. HOCH CHCHÖCH,OH OH number of chiral carbon atoms number of total possible stereoisomers
1. a) (2 points) The Fisher projection of molecule A reveals that it has three chiral carbons. What is the maximum number of stereoisomers that a molecule with three chiral carbons can have? b) (18 points) Even though molecule A has three chiral carbon atoms, there are only four stereoisomers: A, B, C, and D. Explain why so few stereoisomers exist, using structures as part our answer. Your answer should take your answer to a) into account. CH,OH CH2OH CH...
3. (4 pts) Complete the Fischer projection drawn below by adding the four substituents to the chiral carbon of (s)-2-methyl-3-bromo-hexane. 4. (4 pts) Draw a wedge and dash structure representing (1R 2R,3S)-1,2- dichloro3-ethylcyclohexane. 5. (4pts) 2-bromobutane is shown below. Is this (R)-2-bromobutane or (S)-2 bromobutane? 6. (6 pts) For each chiral carbon in ascorbic acid (vitamin C), shown below, assign Ror S to each stereocenter. How many stereoisomers of ascorbic acid are possible? OH HO ОН 7. (9 pts) (Are...
8. Indicate whether each of the following statements is true or false. If a statement is false, explain why a) Two structural isomers may be chiral. : True b) A compound must be chiral in order to have an enantiomer. True c) A chiral compound with an asymmetric carbon atom designated always has a positive optical rotation. False (R) as d) Mirror-image molecules are always enantiomers. False chiral. False e) All compounds with asymmetric carbon atoms are f)The relative configuration...
5-26 For each structure, 1. star (*) any asymmetric carbon atoms. 2. label each asymmetric carbon as (R) or (S). draw any internal mirror planes of symmetry. label the structure as chiral or achiral. label any meso structures. We were unable to transcribe this image
Enter the correct answers in the boxes below. 1. A chiral carbon must have a geometry and (2 pts) * 2. If a chiral compound rotates plane polarized light counterclockwise, it is said to be (2 pts) 3. For each compound below, identify all chiral centers by dragging asterisks (*) below to the correct position(s), then indicate whether the compound is optically active by deleting the wrong option. (4 pts) Optically active? OH CHCH3 (a) yes no (b) OH yes...
3. Diastereomers and Meso Forms. When a molecule has two or more stereogenic centers, stereoisomers that are not mirror images can exist; these are called diastereoisomers. Within this general class, there are special types of stereoisomers that are always optically inactive and are called meso forms. Construct a model with four different colored balls about a carbon center. Construct another identical to the first and verify this by the superimposition test. Now remove the same colored balls, blue (C from...
FOTO UV 1. Which of the molecules shown can exhibit optical isomerism? Use an arrow to indicate the chiral center in each optically active molecule. OH NH2 CH3-CH-COOH glycine CH3CH-COOH lactic acids ОН row S1 HOCH CH-CH2OH cibo no glycerol DUO 2. In this experiment, you found that a molecule with one chiral center has two optical isomers, and a com- pound with two chiral centers has four optical isomers. How many optical isomers are possible for a com- pound...
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