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D10 203.101 PRE-TEST Part 1 1. The reaction, CH,cl + OH- - > CH, OH + ci- Ho : has the following thermodynamic v...
3. Which is the major product for the following reaction? CI + H20 +H30 SMULE H₃ CH₃ CH3 HO HO H₂C H₃ C - CH₂ HO 1...
3. Which is the major product for the following reaction? CI + H20 +H30 SMULE H₃ CH₃ CH3 HO HO H₂C H₃ C - CH₂ HO 1 H₃C 3 CH₃ H₃C Сн, CH₂ CH₃ CH3 CH3
CH3 CH3 CH₃ -OH -CI CH3 LOHY +CF step 3 HO step 2 + H-CI step...
CH3 CH3 CH₃ -OH -CI CH3 LOHY +CF step 3 HO step 2 + H-CI step 1 + cr VII) Which compound would you predict to be highest in energy? A B C D Please explain Why!
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...
Identify the reagents needed for the following reaction scheme. TBDMS-CI Ag,0 NH OH HOCH,CH, OH HO...
Identify the reagents needed for the following reaction scheme. TBDMS-CI Ag,0 NH OH HOCH,CH, OH HO H0.20 H2O H2SO4, HgSO4 MNF [1LIAIH [2] H2O (1) CHLI 12] H2O [1] HCECLI 12] H2O [1] BH 121H, HO
Problem of the Day 18 1. (10 pts) Consider the following reaction: TO + HBr a....
Problem of the Day 18 1. (10 pts) Consider the following reaction: TO + HBr 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 HCC-CH3 KJ/MOL KCAL/MOL 385 92...
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...
Determine the product of the following reaction. 1 L CHOCH "CH Br no reaction H DH...
Determine the product of the following reaction. 1 L CHOCH "CH Br no reaction H DH (D) 8. Which reagent(s) is needed to facilitate the following reaction: (A) H20, (B) 1. Hg(OAc)2 in H2O 2. NaBH4 (C) 1. Hg(OAc), in CH,OH (D) 1.BH; THE 2. NaBH4 2. H2O2, NaOH (E) all of the above would work 9. Which of the following compounds is the final product of the reaction below: CI (A) (B) CHA + 2 mol Cl, in cct...
Ho for the pre c! . Given the bond dissociation energies below in Kcal/mol, estimate the ano forth (CH),CH-CI step...
Ho for the pre c! . Given the bond dissociation energies below in Kcal/mol, estimate the ano forth (CH),CH-CI step . CHCI c) 40 kcal/mol (CH.J.CH a) +22 kcal/mol b)-22 kcal/mol e) -45 kcal/mol he major monobrominated product that results from when methylcyclopentane is subjected d) +45 kcal/mol c) a tertiary halide radical bromination is b) a secondary halide e) bromomethane a) A primary halide d) A quaternary halide 3. Which of the following is a termination a) Cl +...
the weakest base: CH3 HO HS the fastest in an Syl reaction: (CE)_CACHOSCH (CH3CB (CH.) CHCH(Br)CH, (CH),C(Br)CH (CH...
the weakest base: CH3 HO HS the fastest in an Syl reaction: (CE)_CACHOSCH (CH3CB (CH.) CHCH(Br)CH, (CH),C(Br)CH (CH3)2CHCH Br 2. For each pair of reactions given below indicate which is faster and explain your reasoning. + CHỊ N + C CH3Cl + N CH3 + Ng CH₃N₂ + i CHg. + NaCN CH, CN + Nal DMSO CH3-1 + NaCN C H, CN + Nal Cho (c) CH,0 + CH,CH,Br - HƠ + CHỊCH,Br CH,CH,OCH, + Bril CH,CH,OH + Br...
1. Calculate AH for each reaction using bond dissociation values. Determine if the reaction is exothermic...
1. Calculate AH for each reaction using bond dissociation values. Determine if the reaction is exothermic or endothermic a. CH3CH2CH3 + Br2 — CHșCH,CH,-Br + HBr ОН + H₂O + HI 498 297 aaa 720 - 698 - 22 401 andiotamie Table 6.2 Bond Dissociation Energies for Some Common Bonds IA-B - A. + .B] Bond AH kJ/mol (kcal/mol) Bond AH kJ/mol kcal/mol) 456 569 431 H-Z bonds H-F H-CI H-Br H-1 Н-ОН (136) (103) (88) 368 297 498 (71)...
3. Which is the major product for the following reaction? CI + H20 +H30 SMULE H₃ CH₃ CH3 HO HO H₂C H₃ C - CH₂ HO 1 H₃C 3 CH₃ H₃C Сн, CH₂ CH₃ CH3 CH3
CH3 CH3 CH₃ -OH -CI CH3 LOHY +CF step 3 HO step 2 + H-CI step 1 + cr VII) Which compound would you predict to be highest in energy? A B C D Please explain Why!
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...
Identify the reagents needed for the following reaction scheme. TBDMS-CI Ag,0 NH OH HOCH,CH, OH HO H0.20 H2O H2SO4, HgSO4 MNF [1LIAIH [2] H2O (1) CHLI 12] H2O [1] HCECLI 12] H2O [1] BH 121H, HO
Problem of the Day 18 1. (10 pts) Consider the following reaction: TO + HBr 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 HCC-CH3 KJ/MOL KCAL/MOL 385 92...
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...
Determine the product of the following reaction. 1 L CHOCH "CH Br no reaction H DH (D) 8. Which reagent(s) is needed to facilitate the following reaction: (A) H20, (B) 1. Hg(OAc)2 in H2O 2. NaBH4 (C) 1. Hg(OAc), in CH,OH (D) 1.BH; THE 2. NaBH4 2. H2O2, NaOH (E) all of the above would work 9. Which of the following compounds is the final product of the reaction below: CI (A) (B) CHA + 2 mol Cl, in cct...
Ho for the pre c! . Given the bond dissociation energies below in Kcal/mol, estimate the ano forth (CH),CH-CI step . CHCI c) 40 kcal/mol (CH.J.CH a) +22 kcal/mol b)-22 kcal/mol e) -45 kcal/mol he major monobrominated product that results from when methylcyclopentane is subjected d) +45 kcal/mol c) a tertiary halide radical bromination is b) a secondary halide e) bromomethane a) A primary halide d) A quaternary halide 3. Which of the following is a termination a) Cl +...
the weakest base: CH3 HO HS the fastest in an Syl reaction: (CE)_CACHOSCH (CH3CB (CH.) CHCH(Br)CH, (CH),C(Br)CH (CH3)2CHCH Br 2. For each pair of reactions given below indicate which is faster and explain your reasoning. + CHỊ N + C CH3Cl + N CH3 + Ng CH₃N₂ + i CHg. + NaCN CH, CN + Nal DMSO CH3-1 + NaCN C H, CN + Nal Cho (c) CH,0 + CH,CH,Br - HƠ + CHỊCH,Br CH,CH,OCH, + Bril CH,CH,OH + Br...
1. Calculate AH for each reaction using bond dissociation values. Determine if the reaction is exothermic or endothermic a. CH3CH2CH3 + Br2 — CHșCH,CH,-Br + HBr ОН + H₂O + HI 498 297 aaa 720 - 698 - 22 401 andiotamie Table 6.2 Bond Dissociation Energies for Some Common Bonds IA-B - A. + .B] Bond AH kJ/mol (kcal/mol) Bond AH kJ/mol kcal/mol) 456 569 431 H-Z bonds H-F H-CI H-Br H-1 Н-ОН (136) (103) (88) 368 297 498 (71)...
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