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Question 1 2 pts Determine whether the molecule below is optically active. cannot...
9. C (Z-2-hexene d. They are all of equal stability. Choose the most stable alkene among...
9. C (Z-2-hexene d. They are all of equal stability. Choose the most stable alkene among the following a 1-hexene b. (E)-2-hexene 10. What is the relation between an enantiomer's configuration and its specific rotation? (a) Rcompounds usually are dextrorotatory with few exceptions (b) R compounds always are dextrorotatory. (c) There is no relation. (d) R compounds always are levorotatory 11. How many chiral centers are there in tartaric acid, and how many different stereoisomers exist for this acid? он...
What is the relationship between the following molecules? Question 1 1 pts What is the relationship...
What is the relationship between the following molecules?
Question 1 1 pts What is the relationship between the following molecules? 1 Br > ll Br No relationship Enantiomers Identical Constitutional Isomers • Diastereomers Question 2 1 pts What is the relationship between the following molecules? OH CH3 CH3 Diastereomers Constitutional Isomers Enantiomers Identical No relationship
Problem 2. Stereochemistry (30 points). Within each set of stereoisomers shown below determine whether the isomer...
Problem 2. Stereochemistry (30 points). Within each set of stereoisomers shown below determine whether the isomer is chiral (optically active) or achiral (optically inactive). Identify enantiomers, diastereomers, and isomers that are the same. For those that are chiral, determine the stereochemical configuration (R or S) at each chiral center. CH3 CH3 CH3 H₃C 2CH3 HC H₃ C CH3 CH3 H₃ C CH3 CH3 CH CH3 H3C нс, ***CH3 CH3 H₃ C CH3 не сез ОН ОН ОН ОН ОН ОН...
D Question 9 1 pts What is the stereochemical relationship between the two molecules below? NH2...
D Question 9 1 pts What is the stereochemical relationship between the two molecules below? NH2 NH2 Enantiomers Diastereomers Identical Not stereoisomers
Question 9 6 pts What is the maximum number of different stereoisomers for the molecule shown?...
Question 9 6 pts What is the maximum number of different stereoisomers for the molecule shown? O 11110: D Question 10 6 pts Which molecule is aromatic? // < : | | | | | | | | | | | | | | Question 1 6 pts Which term best describes the relationship between the two structures shown: enantiomers. diastereomers, conformational isomers, or constitutional isomers Conformational isomers Constitutional isomers Enantiomers Dlastereomers
Which of the following structures is most stable? 2) How many stereoisomers does the molecule below...
Which of the following structures is most stable? 2) How many stereoisomers does the molecule below have? (СН), С+ снен снаси сна OH CH₃ br. a) 3 6) 4 c) 6 d) 8 e 9 3) Which of the following molecules below are chiral? 0) to A Boh A MOH HOS DBr e) 1, 2 and 3 a) Only 1 b) 1 and 3 c) 2 and 3 d) 1 and 3 What is the relationship between the following two...
7. (9 pts) (Are the following optically active or meso? meso HyCHC OH HO opticaly actve...
7. (9 pts) (Are the following optically active or meso? meso HyCHC OH HO opticaly actve active opti call active 8. (3 pts) How many stereoisomers are there of 2,3-dibromobutane? 4 sleeoisamvers (8 pts) Circle the letter of the statements that are true. a. Racemic mixtures are optically active Enantiomers have specific rotations that are equal, but have opposite signs 9. o adtc) Achiral molecules are optically inactive d Meso compounds contain equal amounts of enantiomers 4pts) Complete the Fischer...
1.A. Place an asterisk (*) next to each stereocenter of these four compounds. 1.3. Bubble in...
1.A. Place an asterisk (*) next to each stereocenter of these four compounds. 1.3. Bubble in if the compound is chiral or achiral. 1.C. Determine the stereochemical relationship between each possible pair. Br Br Br Br A B D chiral O achiral OO chiral achiral с Ochiral achiral 8 chiral achiral A and B: 000 identical enantiomers diastereomers none of these A and C: ооо identical enantiomers O diastereomers none of these A and D: оооооо O identical enantiomers diastereomers...
cules is polar. For those that are polar, 1) Determine whether or not each of the...
cules is polar. For those that are polar, 1) Determine whether or not each of the following molecules is polar. For indicate the direction of the net dipole moment: FF 2) For the structures drawn above in question 1, which of the compounds would have a boiling point? Molecule A or B? Explain why (at least 1 complete sentence) 3) For the structures drawn above in question 1, which of the compound would be more soluble in hexane-molecule A or...
31 Multiple Choice Problems: 16 questions, 4 pts each =64 total. 1. Circle optically active molecules...
31 Multiple Choice Problems: 16 questions, 4 pts each =64 total. 1. Circle optically active molecules from the list below: HO Br H Br H HC 2. What is the relationship of the following two molecules, one in bond-line structure and one in Fischer projection? Br Me Me Cl CA Br Same molecule with same rotational conformation a. b. Same molecule with different rotational conformation C. Constitutional isomers d. Enantiomers Diastereomers e. Identify the resonance pattern for the following curved...
9. C (Z-2-hexene d. They are all of equal stability. Choose the most stable alkene among the following a 1-hexene b. (E)-2-hexene 10. What is the relation between an enantiomer's configuration and its specific rotation? (a) Rcompounds usually are dextrorotatory with few exceptions (b) R compounds always are dextrorotatory. (c) There is no relation. (d) R compounds always are levorotatory 11. How many chiral centers are there in tartaric acid, and how many different stereoisomers exist for this acid? он...
What is the relationship between the following molecules?
Question 1 1 pts What is the relationship between the following molecules? 1 Br > ll Br No relationship Enantiomers Identical Constitutional Isomers • Diastereomers Question 2 1 pts What is the relationship between the following molecules? OH CH3 CH3 Diastereomers Constitutional Isomers Enantiomers Identical No relationship
Problem 2. Stereochemistry (30 points). Within each set of stereoisomers shown below determine whether the isomer is chiral (optically active) or achiral (optically inactive). Identify enantiomers, diastereomers, and isomers that are the same. For those that are chiral, determine the stereochemical configuration (R or S) at each chiral center. CH3 CH3 CH3 H₃C 2CH3 HC H₃ C CH3 CH3 H₃ C CH3 CH3 CH CH3 H3C нс, ***CH3 CH3 H₃ C CH3 не сез ОН ОН ОН ОН ОН ОН...
D Question 9 1 pts What is the stereochemical relationship between the two molecules below? NH2 NH2 Enantiomers Diastereomers Identical Not stereoisomers
Question 9 6 pts What is the maximum number of different stereoisomers for the molecule shown? O 11110: D Question 10 6 pts Which molecule is aromatic? // < : | | | | | | | | | | | | | | Question 1 6 pts Which term best describes the relationship between the two structures shown: enantiomers. diastereomers, conformational isomers, or constitutional isomers Conformational isomers Constitutional isomers Enantiomers Dlastereomers
Which of the following structures is most stable? 2) How many stereoisomers does the molecule below have? (СН), С+ снен снаси сна OH CH₃ br. a) 3 6) 4 c) 6 d) 8 e 9 3) Which of the following molecules below are chiral? 0) to A Boh A MOH HOS DBr e) 1, 2 and 3 a) Only 1 b) 1 and 3 c) 2 and 3 d) 1 and 3 What is the relationship between the following two...
7. (9 pts) (Are the following optically active or meso? meso HyCHC OH HO opticaly actve active opti call active 8. (3 pts) How many stereoisomers are there of 2,3-dibromobutane? 4 sleeoisamvers (8 pts) Circle the letter of the statements that are true. a. Racemic mixtures are optically active Enantiomers have specific rotations that are equal, but have opposite signs 9. o adtc) Achiral molecules are optically inactive d Meso compounds contain equal amounts of enantiomers 4pts) Complete the Fischer...
1.A. Place an asterisk (*) next to each stereocenter of these four compounds. 1.3. Bubble in if the compound is chiral or achiral. 1.C. Determine the stereochemical relationship between each possible pair. Br Br Br Br A B D chiral O achiral OO chiral achiral с Ochiral achiral 8 chiral achiral A and B: 000 identical enantiomers diastereomers none of these A and C: ооо identical enantiomers O diastereomers none of these A and D: оооооо O identical enantiomers diastereomers...
cules is polar. For those that are polar, 1) Determine whether or not each of the following molecules is polar. For indicate the direction of the net dipole moment: FF 2) For the structures drawn above in question 1, which of the compounds would have a boiling point? Molecule A or B? Explain why (at least 1 complete sentence) 3) For the structures drawn above in question 1, which of the compound would be more soluble in hexane-molecule A or...
31 Multiple Choice Problems: 16 questions, 4 pts each =64 total. 1. Circle optically active molecules from the list below: HO Br H Br H HC 2. What is the relationship of the following two molecules, one in bond-line structure and one in Fischer projection? Br Me Me Cl CA Br Same molecule with same rotational conformation a. b. Same molecule with different rotational conformation C. Constitutional isomers d. Enantiomers Diastereomers e. Identify the resonance pattern for the following curved...
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