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2). Consider the following intramolecular S2 reaction. no ♡ + HI A) (5 pts) Use the...
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...
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 #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...
TABLE 6.1 BOND DISSOCIATION ENERGIES (A) OF COMMON BONDS KJ/MOL KCAL/MOL Bonds to H H2C=CH-CH2 HCC-CH,...
TABLE 6.1 BOND DISSOCIATION ENERGIES (A) OF COMMON BONDS KJ/MOL KCAL/MOL Bonds to H H2C=CH-CH2 HCC-CH, KJ/MOL KCAL/MOL 385 92 489117 HH 435 80 104 104 KJ/MOL KCAL/MOL 444 106 335 285 222 381 91 (CH3)2CH-F (CH) CH-CI (CH3)2CHBr (CH),CH (CH3)2CH-OH H-CH3 H-CH2CH3 HCH(CH3 H- CH3) 435 104 109 Bonds to methyl CH; CHEF CH3-C1 CH3-Br CH3 CH, OH CH I I 356 85 381 91 HC-c-X CHE (CH3)3C-H (CH3),C-F (CH),C-C1 (CH3)2C-Br (CH3), (CH)C-OH 381 444 331 106 111 464...
Bond Dissociation Energies (for A-B Bond broken AH, kJ/mol Bond broken → A A4, kJ/mol +...
Bond Dissociation Energies (for A-B Bond broken AH, kJ/mol Bond broken → A A4, kJ/mol + B) Bond broken mo H-H CH3CH2CH2-H (CH3)2CH-H (CH3)3C-H 436 423 413 400. H-Br 366 CH3CH2CH2-Br 294 (CH3)2CH-Br 298 (CH3)3C-Br292 Br-Br 193 H-CI 432 CH3CH2CH2-CI 354 (CH3)2CH-CI 355 (CH3)3C-CI 349 CI-CI 243 Alkane halogenation is a two-step reaction, as shown below. Using the table of bond dissociation energies, calculate the enthalpy of each step and the enthalpy of the overall reaction. Step 1: Number CH3CHCH3...
For the reaction below: CH4 •он CH3 H-OH a. Estimate the gas phase enthalpy change using...
For the reaction below: CH4 •он CH3 H-OH a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from your text. Click the References button and then click the Tables link on the drop-down that appears. Include algebraic sign and units. b. Is the reaction exothermic or endothermic? c. Is the reaction likely to proceed spontaneously in the direction written? For the reaction below: CH4 + Fz CH3-F H/F a. Estimate the...
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)...
Using the table of bond dissociation enthalpies, calculate AH° for the reaction A. (Use the entries...
Using the table of bond dissociation enthalpies, calculate AH° for the reaction A. (Use the entries for propene and propenyl halides for the calculation of cyclohexene and cyclohexenyl halides, respectively. Pay attention to the algebraic sign of your answer!) C-H bond BDE (kJ/mol) CH3-H 439 C2H:-H 422 (CH3), CH-H 414 (CH3)3C-H 405 CH2=CHCH2-H 372 CH2=CH-H 464 Table of bond dissociation enthalpies C-X bond BDE (kJ/mol) X, and HX bonds BDE (kJ/mol) CH3-I 242 CI-CI 247 C2H5-I 238 Br-Br 192 (CH3)2...
BO D Which of ten The reaction of A to B. B) The reaction of B...
BO D Which of ten The reaction of A to B. B) The reaction of B to C. C) The reaction of C to D. D) All three steps occur at the same rate: there is no rate-limiting step. E) The most exothermic step is rate-limiting. esaretim Rank the following carbocations in order of stability. (The most stable is first.) > III II B) II > > III C) III > > II I > Il > III D 36)...
1. For the following substitution reaction, please (a) calculate the AHran. (b) is this reaction an exothermic or e...
1. For the following substitution reaction, please (a) calculate the AHran. (b) is this reaction an exothermic or endothermic process? (5 pts) CHE CH3 H-C-Br + H-O-H + H-Br CHE н-с-он сн. Bond dissociation energies (CH3)2CH-Br 285 kJ/mol (CH),CH-OH 401 kJ/mol H-OH 498 kJ/mol H-Br 368 kJ/mol
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...
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 #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...
TABLE 6.1 BOND DISSOCIATION ENERGIES (A) OF COMMON BONDS KJ/MOL KCAL/MOL Bonds to H H2C=CH-CH2 HCC-CH, KJ/MOL KCAL/MOL 385 92 489117 HH 435 80 104 104 KJ/MOL KCAL/MOL 444 106 335 285 222 381 91 (CH3)2CH-F (CH) CH-CI (CH3)2CHBr (CH),CH (CH3)2CH-OH H-CH3 H-CH2CH3 HCH(CH3 H- CH3) 435 104 109 Bonds to methyl CH; CHEF CH3-C1 CH3-Br CH3 CH, OH CH I I 356 85 381 91 HC-c-X CHE (CH3)3C-H (CH3),C-F (CH),C-C1 (CH3)2C-Br (CH3), (CH)C-OH 381 444 331 106 111 464...
Bond Dissociation Energies (for A-B Bond broken AH, kJ/mol Bond broken → A A4, kJ/mol + B) Bond broken mo H-H CH3CH2CH2-H (CH3)2CH-H (CH3)3C-H 436 423 413 400. H-Br 366 CH3CH2CH2-Br 294 (CH3)2CH-Br 298 (CH3)3C-Br292 Br-Br 193 H-CI 432 CH3CH2CH2-CI 354 (CH3)2CH-CI 355 (CH3)3C-CI 349 CI-CI 243 Alkane halogenation is a two-step reaction, as shown below. Using the table of bond dissociation energies, calculate the enthalpy of each step and the enthalpy of the overall reaction. Step 1: Number CH3CHCH3...
For the reaction below: CH4 •он CH3 H-OH a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from your text. Click the References button and then click the Tables link on the drop-down that appears. Include algebraic sign and units. b. Is the reaction exothermic or endothermic? c. Is the reaction likely to proceed spontaneously in the direction written? For the reaction below: CH4 + Fz CH3-F H/F a. Estimate the...
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)...
Using the table of bond dissociation enthalpies, calculate AH° for the reaction A. (Use the entries for propene and propenyl halides for the calculation of cyclohexene and cyclohexenyl halides, respectively. Pay attention to the algebraic sign of your answer!) C-H bond BDE (kJ/mol) CH3-H 439 C2H:-H 422 (CH3), CH-H 414 (CH3)3C-H 405 CH2=CHCH2-H 372 CH2=CH-H 464 Table of bond dissociation enthalpies C-X bond BDE (kJ/mol) X, and HX bonds BDE (kJ/mol) CH3-I 242 CI-CI 247 C2H5-I 238 Br-Br 192 (CH3)2...
BO D Which of ten The reaction of A to B. B) The reaction of B to C. C) The reaction of C to D. D) All three steps occur at the same rate: there is no rate-limiting step. E) The most exothermic step is rate-limiting. esaretim Rank the following carbocations in order of stability. (The most stable is first.) > III II B) II > > III C) III > > II I > Il > III D 36)...
1. For the following substitution reaction, please (a) calculate the AHran. (b) is this reaction an exothermic or endothermic process? (5 pts) CHE CH3 H-C-Br + H-O-H + H-Br CHE н-с-он сн. Bond dissociation energies (CH3)2CH-Br 285 kJ/mol (CH),CH-OH 401 kJ/mol H-OH 498 kJ/mol H-Br 368 kJ/mol
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