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Question 17 Which S N2 reaction will occur most rapidly in a mixture of water and...
16. Which nucleophilic substitution reaction would be unlikely to occur? A) HO + CH3CH2-1 - CH3CH2-OH...
16. Which nucleophilic substitution reaction would be unlikely to occur? A) HO + CH3CH2-1 - CH3CH2-OH + 1 B) I + CH3CH2-H – CH3CH2-I + H C) CHS + CH3-Br CH3S-CH3 + Br D) All of the above E) None of the above
2). Consider the following intramolecular S2 reaction. no ♡ + HI A) (5 pts) Use the...
2). Consider the following intramolecular S2 reaction. no ♡ + HI A) (5 pts) Use the table of Bond Dissociation Enthalpies (at the back of the exam) to calculate the approximate ΔΗπη. B) (3 pts) Is the reaction endothermic or exothermic? Why? C) (6 pts) Draw the Reaction Energy Coordinate Diagram. Label the axes, reactant(s), product(s), transition state(s), intermediate(s), activation energy, and reaction enthalpy. D) (3 pts) In regards to entropy, would you expect the reaction to be favorable, or...
Which organic solvent - A, B, C, or D - would be most soluble in water?...
Which organic solvent - A, B, C, or D - would be most soluble in water? Explain your choice. A. CH3CH2CH2CH2CH2CH3 B. CH3OCH2CH2CH3 C. CH3OCH2CH2OCH3 D. CH3CH2CH2CH3 In which of the following alcohol solvents do you think NaCl would be the most soluble? A. CH3OH B. CH3CH2OH C. CH3CH2CH2OH D. CH3CH2CH2CH2OH
Problem #3 Calculate AH° for the following reaction using the bond energies found in Table 6.1...
Problem #3 Calculate AH° for the following reaction using the bond energies found in Table 6.1 on page 228. Is this reaction spontaneous? (CH3)3C-H + 12 (CH3)3C-1 + HI TABLE 6.1 BOND DISSOCIATION ENERGIES (AH) OF COMMON BONDS KJ/MOL KCAL/MOL H2C=CH-CH3 HC-C-CH KJ/MOL KCAL/MOL 385 92 489117 KJ/MOL KCAL/MOL 444 106 335 80 285 Bonds to H. H-H H-CH3 H-CH2CH3 H-CH(CH3)2 H-C(CH3)3 (CH3)2CH-F (CH3)2CH-CI (CH3)2CH-Br (CH3)2CH- (CH3)2CH-OH 68 222 435 104 435 104 41098 39795 91 473 113 53 381...
() 1. Which of the following alkyl holides would you expect to be most reactive in a unimolecular reaction? CH3 a)...
() 1. Which of the following alkyl holides would you expect to be most reactive in a unimolecular reaction? CH3 a) CsM , CH, CH, CH, Br b) CEHCH CH BY c) CH, CCH, Br d) CH, CH2 CH CHE сн. он сня Br e) CHICCHE CH3 (4). 2. What would you expect to be the chief organic product(s) when tert-butyl bromide reacts with sodium acetylide, i.e.. CH + - CH3-C-Br + Na CECH ? CH a) 1 b) II...
CH3 (4) 1. Which of the following alkyl halides would you expect to be most reactive...
CH3 (4) 1. Which of the following alkyl halides would you expect to be most reactive in a unimolecular reaction? a) C&H, CH, CH, CH, BY b) CH 1 CH CH Br C) CH11CCH, Br d) C6H CH2 CH CHỊ CHỊ CH3 CHỊ e) C&H, CCH Br CHE (4) 2. What would you expect to be the chief organic product(s) when tert-butyl bromide reacts with sodium acetylide, i.e., CH3 + - CH2-C-Br + Na :CECH — ? CH a) I...
which Sn2 reaction would be expected to occur most quickly. Why? .10. Which Sn2 reaction would...
which Sn2 reaction would be expected to occur most quickly.
Why?
.10. Which Sn2 reaction would be expected to occur most quickly? A. CH,CH,Br + CN' C. CH,CH,F + CN → E. CH,CH,OH + CN → B. CHÚCHI + CN » D. CHÚCHÚCl + CN »
Problem of the Day 18 1. (10 pts) Consider the following reaction: Br HBO a. Estimate AH for this reaction (use ta...
Problem of the Day 18 1. (10 pts) Consider the following reaction: Br HBO a. Estimate AH for this reaction (use table 6.1 in your textbook) b. Is AS for this reaction positive or negative? Explain. C. Determine if AG is positive or negative. d. Is the sign of AG (positive or negative) dependent on temperature? Why? TABLE 6.1 BOND DISSOCIATION ENERGIES (AH) OF COMMON BONDS KJ/MOL KCAL/MOL KI/MOL KCAUMO Bonds to H H2C=CH-CH3 HC=C-CH3 KJ/MOL KCAL/MOL 385 92 489...
I. Multiple choices and blank fill-ins (Each entry 3 pts, 42 pts) 1. Which of the...
I. Multiple choices and blank fill-ins (Each entry 3 pts, 42 pts) 1. Which of the following alkyl halides is the most reactive one in a SN2 reaction? Which of them is the least reactive one? Br Cl Br CI CI Br Which of the following leaving group is the poorest one? 2. Cl CH3O НаО CH3ОН 3. Write/draw the most reactive alkyl halide in a solvolysis reaction with a molecular formula of CsHCl 4. Which of the following compounds...
Which of the following undergoes the most rapid electrophilic aromatic substitution with Brz/AlBr3 CH3 OCH3 OCH3...
Which of the following undergoes the most rapid electrophilic aromatic substitution with Brz/AlBr3 CH3 OCH3 OCH3 OCH3 Br a) b) c) d) NO2 OCH3 OCH3 SO3H LO) What is the major product of this reaction: H2CO Brą, light Product Br Br mootorror H3CO. H3CO. d)
16. Which nucleophilic substitution reaction would be unlikely to occur? A) HO + CH3CH2-1 - CH3CH2-OH + 1 B) I + CH3CH2-H – CH3CH2-I + H C) CHS + CH3-Br CH3S-CH3 + Br D) All of the above E) None of the above
2). Consider the following intramolecular S2 reaction. no ♡ + HI A) (5 pts) Use the table of Bond Dissociation Enthalpies (at the back of the exam) to calculate the approximate ΔΗπη. B) (3 pts) Is the reaction endothermic or exothermic? Why? C) (6 pts) Draw the Reaction Energy Coordinate Diagram. Label the axes, reactant(s), product(s), transition state(s), intermediate(s), activation energy, and reaction enthalpy. D) (3 pts) In regards to entropy, would you expect the reaction to be favorable, or...
Problem #3 Calculate AH° for the following reaction using the bond energies found in Table 6.1 on page 228. Is this reaction spontaneous? (CH3)3C-H + 12 (CH3)3C-1 + HI TABLE 6.1 BOND DISSOCIATION ENERGIES (AH) OF COMMON BONDS KJ/MOL KCAL/MOL H2C=CH-CH3 HC-C-CH KJ/MOL KCAL/MOL 385 92 489117 KJ/MOL KCAL/MOL 444 106 335 80 285 Bonds to H. H-H H-CH3 H-CH2CH3 H-CH(CH3)2 H-C(CH3)3 (CH3)2CH-F (CH3)2CH-CI (CH3)2CH-Br (CH3)2CH- (CH3)2CH-OH 68 222 435 104 435 104 41098 39795 91 473 113 53 381...
() 1. Which of the following alkyl holides would you expect to be most reactive in a unimolecular reaction? CH3 a) CsM , CH, CH, CH, Br b) CEHCH CH BY c) CH, CCH, Br d) CH, CH2 CH CHE сн. он сня Br e) CHICCHE CH3 (4). 2. What would you expect to be the chief organic product(s) when tert-butyl bromide reacts with sodium acetylide, i.e.. CH + - CH3-C-Br + Na CECH ? CH a) 1 b) II...
CH3 (4) 1. Which of the following alkyl halides would you expect to be most reactive in a unimolecular reaction? a) C&H, CH, CH, CH, BY b) CH 1 CH CH Br C) CH11CCH, Br d) C6H CH2 CH CHỊ CHỊ CH3 CHỊ e) C&H, CCH Br CHE (4) 2. What would you expect to be the chief organic product(s) when tert-butyl bromide reacts with sodium acetylide, i.e., CH3 + - CH2-C-Br + Na :CECH — ? CH a) I...
which Sn2 reaction would be expected to occur most quickly.
Why?
.10. Which Sn2 reaction would be expected to occur most quickly? A. CH,CH,Br + CN' C. CH,CH,F + CN → E. CH,CH,OH + CN → B. CHÚCHI + CN » D. CHÚCHÚCl + CN »
Problem of the Day 18 1. (10 pts) Consider the following reaction: Br HBO a. Estimate AH for this reaction (use table 6.1 in your textbook) b. Is AS for this reaction positive or negative? Explain. C. Determine if AG is positive or negative. d. Is the sign of AG (positive or negative) dependent on temperature? Why? TABLE 6.1 BOND DISSOCIATION ENERGIES (AH) OF COMMON BONDS KJ/MOL KCAL/MOL KI/MOL KCAUMO Bonds to H H2C=CH-CH3 HC=C-CH3 KJ/MOL KCAL/MOL 385 92 489...
I. Multiple choices and blank fill-ins (Each entry 3 pts, 42 pts) 1. Which of the following alkyl halides is the most reactive one in a SN2 reaction? Which of them is the least reactive one? Br Cl Br CI CI Br Which of the following leaving group is the poorest one? 2. Cl CH3O НаО CH3ОН 3. Write/draw the most reactive alkyl halide in a solvolysis reaction with a molecular formula of CsHCl 4. Which of the following compounds...
Which of the following undergoes the most rapid electrophilic aromatic substitution with Brz/AlBr3 CH3 OCH3 OCH3 OCH3 Br a) b) c) d) NO2 OCH3 OCH3 SO3H LO) What is the major product of this reaction: H2CO Brą, light Product Br Br mootorror H3CO. H3CO. d)
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