Have problem on the third question, trans or cis which one is more favored, and why
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Have problem on the third question, trans or cis which one is
more favored, and why...
Which of the following are inter-convertible by rotation around single bonds? cis- & trans-alkene b. Constitutional...
Which of the following are inter-convertible by rotation around single bonds? cis- & trans-alkene b. Constitutional isomers c. chair & boat cyclohexane d. enantiomers d. More than one of the above a. Which of the following objects is/are chiral? Circle all possible answers. a. c. Human nose d. Human ear a fork b. a spoon e. a ball Which of the following isomers do not have the same connectivity? a. Stereoisomers b. Chair and boat conformations of cyclohexane c. Constitutionl...
i know that trans is more stable than cis but i really confusion between 2 and...
i know that trans is more stable than cis but i really
confusion between 2 and 4. please give me the answer with clear
explanation and clear writing.
i dont know anything about bulky group
5. Which of the following is the most stable conformation of trans-1-ethyl-3-methylcyclohexane? CH.CH CH2CH3 ÇH CH3 CH3 CH2CHE CH2CHE - C O (A) 1 (B)2 O(C) 3 O (D) 4
24 Ma 3. 11) In the reaction of Ch with ethane and UV light, which of...
24 Ma 3. 11) In the reaction of Ch with ethane and UV light, which of the following reactions would be a propagation eventis 74 w I) C+CH3-CH3-CH3-CH2-C+ H- II) Cl+CH3-CH3-CH3-H2c HC III) CI+CH3-H2CCH3-CH2-c IV)Cl2+CH3-H2C CH3-CH2-C1 + Cl V) Cl2 + UV light CI+C ph A) reactions I and V B) reactions II, III and IV Thi op (IA, 2A. C) reactions I and IV D) reactions II and IV eoaional Usion of in becket are oation is avaab E)...
Which of the following compounds can have cis and trans isomers? 2-Methyl-2-butene Propene 0 1-Butene 1,2-Dichloro-1-Bu...
Which of the following compounds can have cis and trans isomers? 2-Methyl-2-butene Propene 0 1-Butene 1,2-Dichloro-1-Bu What is the correct molecular formula of 2,4-Diethyltouleno OCHA 0 C₂ H₂2 G H C:oH20 18 Which of the following compounds can have cis and trans isomers? 1-Butene 2-Methyl-2-butene 1,2-Dichloro-1-Butene Propene CH3CHBr2 is obtained from O Reaction of ethyne with one mole of HBr O Reaction of ethyne with one mole of Br2 Reaction of ethyne with two moles of Br2 Reaction of ethyne...
5) (8 pts) Arrange the following compounds from most acidic through neutral to most basic. Briefly...
5) (8 pts) Arrange the following compounds from most acidic through neutral to most basic. Briefly explain your reasoning. 7) (15 pts) a) Write out the 3-step arrow pushing mechanism showing how 1-pentene is hydrated to make 2-pentanol. b) Draw the other 2 alkenes (don't forgel cis/trans isomers!) that could also be hydrated to make 2-pentanol. Briefly explain why 1-pentene is the best choice. II, II,O a) heat Acidic Neutral Basic 6) (18 pts) Consider the Fischer projections of the...
Practice Problems ..0 | 4. 5. Which of the following dienes are s-trans and which are...
Practice Problems ..0 | 4. 5. Which of the following dienes are s-trans and which are s-cis? Of those that are s-trans, are they able to rotate to become s-cis? Reaction 0 6 o Maleic anhydride mp 53°C, MW 98.06 cis-Norbornene-5,6-endo-dicarboxylic anhydride mp 165°C, MW 164.16 Problem: 1) You are given 1 mL of freshly distilled cyclopentadiene in a clean vial and I g of maleic anhydride in weigh boat. The mass of the final product is 1.1g. A) Calculate...
Reaction 0 Maleic anhydride mp 53°C, MW 98.06 cis-Norbornene-5,6-endo-dicarboxylic anhydride mp 165°C, MW 164.16 Problem: 1)...
Reaction 0 Maleic anhydride mp 53°C, MW 98.06 cis-Norbornene-5,6-endo-dicarboxylic anhydride mp 165°C, MW 164.16 Problem: 1) You are given 1 mL of freshly distilled cyclopentadiene in a clean vial and I g of maleic anhydride in weigh boat. The mass of the final product is 1.1g. A) Calculate percent yield. B) Interpret IR spectrum of product (shown below) and provide a table listing functional groups and peak intensity, 5. Which of the following dienes are s-trans and which are s-cis?...
4.81,4.82 Chapter Review 177 481 Are the following compounds structural isomers, cis-trans isomers, or enantiomers? 4.82...
4.81,4.82
Chapter Review 177 481 Are the following compounds structural isomers, cis-trans isomers, or enantiomers? 4.82 Draw the enantiomer of each of the following com- pounds. If the compound is not chiral, state that fact. a. H Η and b. HO Find Br" CH, MF HC Br b. Br но Br. OH w and b. H H-C-H HH H-C-C-C- H C H,CH(CH), c. Che Problems 4.83 Cartat omega-3 fatty acids can be found only in animal sources, such as fatty...
for question 19 can you explain why you picked the reagents you did? Sterist CH; HC CHH; CCH; - CC CH trans vinylic...
for question 19 can you explain why you picked the reagents you
did?
Sterist CH; HC CHH; CCH; - CC CH trans vinylic anion more stable anion able cis vinylic a less stab electron repulsion cis radical anion less stable Hical anion is more stable than the cis radical anion, because the nonbonded electrons are farther apart i The trans vinylic anion is more stable than the cis vinylic anion, because the relatively bulky alkyl group in the trans isomer...
3) For which of the following alkenes will cis- and trans-isomers not exist? H₂C C H₂O...
3) For which of the following alkenes will cis- and trans-isomers not exist? H₂C C H₂O CH₂ H₃C H₂C- CH₂ H₃C CH₃ H C F G H CH I a A) a only B) b only C) both a and c D) d only E) both c and d 4) Provide the proper IUPAC name for the alkene shown below. CH, CH CC H CHỊ CH(CH3 ) A) (E)-1,2-dimethyl-1-heptene B) (E)-3,5-dimethyl-2-hexene C) (Z)-1,2-dimethyl-1-heptene D) (2)-3,5-dimethyl-2-hexene E) none of the above...
Which of the following are inter-convertible by rotation around single bonds? cis- & trans-alkene b. Constitutional isomers c. chair & boat cyclohexane d. enantiomers d. More than one of the above a. Which of the following objects is/are chiral? Circle all possible answers. a. c. Human nose d. Human ear a fork b. a spoon e. a ball Which of the following isomers do not have the same connectivity? a. Stereoisomers b. Chair and boat conformations of cyclohexane c. Constitutionl...
i know that trans is more stable than cis but i really
confusion between 2 and 4. please give me the answer with clear
explanation and clear writing.
i dont know anything about bulky group
5. Which of the following is the most stable conformation of trans-1-ethyl-3-methylcyclohexane? CH.CH CH2CH3 ÇH CH3 CH3 CH2CHE CH2CHE - C O (A) 1 (B)2 O(C) 3 O (D) 4
24 Ma 3. 11) In the reaction of Ch with ethane and UV light, which of the following reactions would be a propagation eventis 74 w I) C+CH3-CH3-CH3-CH2-C+ H- II) Cl+CH3-CH3-CH3-H2c HC III) CI+CH3-H2CCH3-CH2-c IV)Cl2+CH3-H2C CH3-CH2-C1 + Cl V) Cl2 + UV light CI+C ph A) reactions I and V B) reactions II, III and IV Thi op (IA, 2A. C) reactions I and IV D) reactions II and IV eoaional Usion of in becket are oation is avaab E)...
Which of the following compounds can have cis and trans isomers? 2-Methyl-2-butene Propene 0 1-Butene 1,2-Dichloro-1-Bu What is the correct molecular formula of 2,4-Diethyltouleno OCHA 0 C₂ H₂2 G H C:oH20 18 Which of the following compounds can have cis and trans isomers? 1-Butene 2-Methyl-2-butene 1,2-Dichloro-1-Butene Propene CH3CHBr2 is obtained from O Reaction of ethyne with one mole of HBr O Reaction of ethyne with one mole of Br2 Reaction of ethyne with two moles of Br2 Reaction of ethyne...
5) (8 pts) Arrange the following compounds from most acidic through neutral to most basic. Briefly explain your reasoning. 7) (15 pts) a) Write out the 3-step arrow pushing mechanism showing how 1-pentene is hydrated to make 2-pentanol. b) Draw the other 2 alkenes (don't forgel cis/trans isomers!) that could also be hydrated to make 2-pentanol. Briefly explain why 1-pentene is the best choice. II, II,O a) heat Acidic Neutral Basic 6) (18 pts) Consider the Fischer projections of the...
Practice Problems ..0 | 4. 5. Which of the following dienes are s-trans and which are s-cis? Of those that are s-trans, are they able to rotate to become s-cis? Reaction 0 6 o Maleic anhydride mp 53°C, MW 98.06 cis-Norbornene-5,6-endo-dicarboxylic anhydride mp 165°C, MW 164.16 Problem: 1) You are given 1 mL of freshly distilled cyclopentadiene in a clean vial and I g of maleic anhydride in weigh boat. The mass of the final product is 1.1g. A) Calculate...
Reaction 0 Maleic anhydride mp 53°C, MW 98.06 cis-Norbornene-5,6-endo-dicarboxylic anhydride mp 165°C, MW 164.16 Problem: 1) You are given 1 mL of freshly distilled cyclopentadiene in a clean vial and I g of maleic anhydride in weigh boat. The mass of the final product is 1.1g. A) Calculate percent yield. B) Interpret IR spectrum of product (shown below) and provide a table listing functional groups and peak intensity, 5. Which of the following dienes are s-trans and which are s-cis?...
4.81,4.82
Chapter Review 177 481 Are the following compounds structural isomers, cis-trans isomers, or enantiomers? 4.82 Draw the enantiomer of each of the following com- pounds. If the compound is not chiral, state that fact. a. H Η and b. HO Find Br" CH, MF HC Br b. Br но Br. OH w and b. H H-C-H HH H-C-C-C- H C H,CH(CH), c. Che Problems 4.83 Cartat omega-3 fatty acids can be found only in animal sources, such as fatty...
for question 19 can you explain why you picked the reagents you
did?
Sterist CH; HC CHH; CCH; - CC CH trans vinylic anion more stable anion able cis vinylic a less stab electron repulsion cis radical anion less stable Hical anion is more stable than the cis radical anion, because the nonbonded electrons are farther apart i The trans vinylic anion is more stable than the cis vinylic anion, because the relatively bulky alkyl group in the trans isomer...
3) For which of the following alkenes will cis- and trans-isomers not exist? H₂C C H₂O CH₂ H₃C H₂C- CH₂ H₃C CH₃ H C F G H CH I a A) a only B) b only C) both a and c D) d only E) both c and d 4) Provide the proper IUPAC name for the alkene shown below. CH, CH CC H CHỊ CH(CH3 ) A) (E)-1,2-dimethyl-1-heptene B) (E)-3,5-dimethyl-2-hexene C) (Z)-1,2-dimethyl-1-heptene D) (2)-3,5-dimethyl-2-hexene E) none of the above...
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