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QUESTION 20 Use compounds G and H shown below to answer this question and the 3...
10) Which of the following are optically inactive? A) a 50-50 mixture of Rand Senantiomers B)...
10) Which of the following are optically inactive? A) a 50-50 mixture of Rand Senantiomers B) a racemic mixture C) every achiral compound D) a meso compound E) all the above 11) If (S)-glyceraldehyde has a specific rotation of -8.7, what is the specific rotation of (R)-glyceraldehyde? A) +8.7 B) -8.7 C) 0.0 D) cannot be determined from the information given 12) What is the relationship between the following compounds? HCI CH - CH₂ CH3 HEC HCI HEC X сін...
Question 3 Homework. Unanswered The compounds represented by the structures below are: CH3 CH3 and O...
Question 3 Homework. Unanswered The compounds represented by the structures below are: CH3 CH3 and O A constitutional isomers o B identical o C cis/trans isomers o D conformers O E different compounds (not isomers)
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...
need to see what i did right and wrong , if possible small explanation as to...
need to see what i did right and wrong , if possible small
explanation as to what was wrong
Br 1 eneae 3 ch1so butane Ано Designate the chiral center in each molecule, if there is one, with a star efhere ntert 1) Assign 1,2,3,4 priority based on atomic number of each atom bonded to the stereogenic or chiral center. 2) Try naming C, D amd G INCLUDE R and S configuration if present 1 etlee Pentane broms 3nitril CN...
Need help with orgo!!! Super badly! 1. Which of the molecules shown below are achiral? A)...
Need help with orgo!!! Super badly!
1. Which of the molecules shown below are achiral?
A) only A
B) only B
C) only C
D) only A and B
E) only A and C
F) only B and C
G) A, B and C
2. Which of the molecules shown
below are achiral?
A) only A
B) only B
C) only C
D) only A and B
E) only A and C
F) only B and C
G) A, B...
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that...
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that represented 4 stereoisomers. 2,3-Dibromobutanoic acid exemplifies such a compound, Make models for the isomers of this compound. a. Draw solid/dashed-wedge structures for the 4 possible stereoisomers and label the enantiomers and diastereomers. b. Specify the sequence priority for the substituents on carbon-2 and carbon-3. Label each structure with the proper R/S notation in the drawings above, for example (2R, 35). d. Draw Newman projections...
3. Cyclic compounds The presence of the ring in all but very large ring cyclic molecules...
3. Cyclic compounds The presence of the ring in all but very large ring cyclic molecules prevents full rotation of the ring atoms. For this reason, stereoisomerism may also occur in cyclic molecules. a) Prepare a model of cyclohexane, C6H12. Draw the condensed formula. b) Build a model of methylcyclohexane (C7H14) by replacing one of the hydrogens of cyclohexane with a methyl group. Draw the skeletal formula for methylcyclohexane. 2 c) How many different isomers exist for methylcyclohexane (CyH34)? d)...
ESSAY. Write your answer in the space provided or on a separate sheet of paper 131...
ESSAY. Write your answer in the space provided or on a separate sheet of paper 131 Canone predict whether a compound with a single et carbon dextro the RS assignment at this asymmetricarbon? Explain briefly levorettory based on MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question 14 A mixture of two enantiomers with a composition of 650, R has an observed rotation of -253 14 in a 100 cm polarimeter tube. If the...
For the following question(s) MATCH each definition to a term from the list below. Place the...
For the following question(s) MATCH each definition to a term from the list below. Place the letter of the term in the blank to the left of the definition. a. racemates b. chirality center c. chirality d. diastereomers e. enantiomers f. meso compounds g. optically active h. prochirality center i. optically inactive j. achiral ____ describes organic molecules which rotate plane-polarized light. ___ is the property of "handedness": the property of an object that causes it to be nonsuperimposable on...
all of them please QUESTION 1 1 points Save Answer Which of the following can have...
all of them please
QUESTION 1 1 points Save Answer Which of the following can have cis/trans isomers? Draw their isomers. CH3CH2CH=CH2 (CH3CH2)2CCHCH3 CH3CH2CH=CHCH3 CH2=CH2 QUESTION 2 1 points Save Answer Name the following compounds, with cis/trans nomenclature. trans-4-methyl-2-hexene trans-4-thyl-2-pentane O cis-4-thyl-2-pentane O cis-4-methyl-2-hexene QUESTION 3 1 points Save Answer Name the following compounds, with cis/trans nomenclature Br Br Otrsans-2,5-dibromo-3-hexene trans-1,4-dibromo-2-butane O cis-1,4-dibromo-2-butane cis 2,5-dibromo-3-hexene Click Save and Submit to see and submit Click Save All Answers to save all...
10) Which of the following are optically inactive? A) a 50-50 mixture of Rand Senantiomers B) a racemic mixture C) every achiral compound D) a meso compound E) all the above 11) If (S)-glyceraldehyde has a specific rotation of -8.7, what is the specific rotation of (R)-glyceraldehyde? A) +8.7 B) -8.7 C) 0.0 D) cannot be determined from the information given 12) What is the relationship between the following compounds? HCI CH - CH₂ CH3 HEC HCI HEC X сін...
Question 3 Homework. Unanswered The compounds represented by the structures below are: CH3 CH3 and O A constitutional isomers o B identical o C cis/trans isomers o D conformers O E different compounds (not isomers)
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...
need to see what i did right and wrong , if possible small
explanation as to what was wrong
Br 1 eneae 3 ch1so butane Ано Designate the chiral center in each molecule, if there is one, with a star efhere ntert 1) Assign 1,2,3,4 priority based on atomic number of each atom bonded to the stereogenic or chiral center. 2) Try naming C, D amd G INCLUDE R and S configuration if present 1 etlee Pentane broms 3nitril CN...
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that represented 4 stereoisomers. 2,3-Dibromobutanoic acid exemplifies such a compound, Make models for the isomers of this compound. a. Draw solid/dashed-wedge structures for the 4 possible stereoisomers and label the enantiomers and diastereomers. b. Specify the sequence priority for the substituents on carbon-2 and carbon-3. Label each structure with the proper R/S notation in the drawings above, for example (2R, 35). d. Draw Newman projections...
3. Cyclic compounds The presence of the ring in all but very large ring cyclic molecules prevents full rotation of the ring atoms. For this reason, stereoisomerism may also occur in cyclic molecules. a) Prepare a model of cyclohexane, C6H12. Draw the condensed formula. b) Build a model of methylcyclohexane (C7H14) by replacing one of the hydrogens of cyclohexane with a methyl group. Draw the skeletal formula for methylcyclohexane. 2 c) How many different isomers exist for methylcyclohexane (CyH34)? d)...
ESSAY. Write your answer in the space provided or on a separate sheet of paper 131 Canone predict whether a compound with a single et carbon dextro the RS assignment at this asymmetricarbon? Explain briefly levorettory based on MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question 14 A mixture of two enantiomers with a composition of 650, R has an observed rotation of -253 14 in a 100 cm polarimeter tube. If the...
For the following question(s) MATCH each definition to a term from the list below. Place the letter of the term in the blank to the left of the definition. a. racemates b. chirality center c. chirality d. diastereomers e. enantiomers f. meso compounds g. optically active h. prochirality center i. optically inactive j. achiral ____ describes organic molecules which rotate plane-polarized light. ___ is the property of "handedness": the property of an object that causes it to be nonsuperimposable on...
all of them please
QUESTION 1 1 points Save Answer Which of the following can have cis/trans isomers? Draw their isomers. CH3CH2CH=CH2 (CH3CH2)2CCHCH3 CH3CH2CH=CHCH3 CH2=CH2 QUESTION 2 1 points Save Answer Name the following compounds, with cis/trans nomenclature. trans-4-methyl-2-hexene trans-4-thyl-2-pentane O cis-4-thyl-2-pentane O cis-4-methyl-2-hexene QUESTION 3 1 points Save Answer Name the following compounds, with cis/trans nomenclature Br Br Otrsans-2,5-dibromo-3-hexene trans-1,4-dibromo-2-butane O cis-1,4-dibromo-2-butane cis 2,5-dibromo-3-hexene Click Save and Submit to see and submit Click Save All Answers to save all...
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