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X.(15 pts) For the following reaction: X + H2O OH H BDE (kl/mol) Tt bond 264...
X. (15 pts) For the following reaction: Н Н H20 "ОН Н Н BDE (kJ/mol) bond...
X. (15 pts) For the following reaction: Н Н H20 "ОН Н Н BDE (kJ/mol) bond 264 Н-ОН 498 Н-СНз 435 С-ОН 381 a. calculate AH for the reaction b. what is the sign of AS? Explain. c. write the expression for AG. wAM d. what is the sign of AG for a spontaneous reaction? e. Would the reaction be spontaneous at high or low temperature? Explain
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...
Consider the following reaction: 6.20 Br +HBr (a) Use Table 6.1 to estimate ΔΗ for this reaction. (b) AS of this reaction is positive. Explain. (c) Determine the sign of AG. (d) Is the sig...
Consider the following reaction: 6.20 Br +HBr (a) Use Table 6.1 to estimate ΔΗ for this reaction. (b) AS of this reaction is positive. Explain. (c) Determine the sign of AG. (d) Is the sign of AG dependent on temperature? (e) Is the magnitude of AG dependent on temperature? Go Tools Window Help :) 72%-) Tue Apr 30 10:38 A. 1 5492r25660150abebaf41ebet.pdf (page 248 of 1,319) TABLE 6.1 BOND DISSOOAmON ENERGIES (M.ฯ OF COMMON BONDS K/MOL KCAL/MO 92 117 НС-о-сн,...
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...
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...
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...
C-H bond BDE (kJ/mol) CH3-H 439 C2H:-H 422 (CH3)2 CH-H 414 (CH3)3 C-H 405 Table of...
C-H bond BDE (kJ/mol) CH3-H 439 C2H:-H 422 (CH3)2 CH-H 414 (CH3)3 C-H 405 Table of Bond Dissociation Enthalpies C-X bond BDE (kJ/mol) X2 and HX bonds BDE (kJ/mol) CH3-C1 351 CI 247 CH-C1 355 НСІ 431 (CH3)2CH-C 355 (CH3)3C-CI 355 CH3 CH3 CH3CHCHCH3 CH3CHCH2CH3 + a Cl2 CI HCI Using the table of bond dissociation energies in the first part of this question: Calculate AH for this reaction. kJ/mol Overall, this reaction is CH3 CH3CHCHCH3 CH3 CH3CHCH2CH3 + b...
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)...
1) A chemical reaction and a table of bond dissociation energies are shown below. H3C H...
1) A chemical reaction and a table of bond dissociation energies are shown below. H3C H НАС + H2O HOZCHz H2C H acid HzC catalyst Bond BDE (KJ/mol) Bond BDE (KJ/mol) Csp3-H 410 Csp2-Csp2 sigma 418 Csp2-H 427 Csp2-Csp2 pi 264 Csp-H 523 C-O sigma 355 Csp3-Csp3 368 C-O pi 261 Csp2-Csp3 418 HO-H 460 a) Calculate the enthalpy change (AH) for the reaction. Remember to include the sign and units. b) If you touched the outside of the reaction...
X. (15 pts) For the following reaction: Н Н H20 "ОН Н Н BDE (kJ/mol) bond 264 Н-ОН 498 Н-СНз 435 С-ОН 381 a. calculate AH for the reaction b. what is the sign of AS? Explain. c. write the expression for AG. wAM d. what is the sign of AG for a spontaneous reaction? e. Would the reaction be spontaneous at high or low temperature? Explain
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...
Consider the following reaction: 6.20 Br +HBr (a) Use Table 6.1 to estimate ΔΗ for this reaction. (b) AS of this reaction is positive. Explain. (c) Determine the sign of AG. (d) Is the sign of AG dependent on temperature? (e) Is the magnitude of AG dependent on temperature? Go Tools Window Help :) 72%-) Tue Apr 30 10:38 A. 1 5492r25660150abebaf41ebet.pdf (page 248 of 1,319) TABLE 6.1 BOND DISSOOAmON ENERGIES (M.ฯ OF COMMON BONDS K/MOL KCAL/MO 92 117 НС-о-сн,...
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...
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...
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...
C-H bond BDE (kJ/mol) CH3-H 439 C2H:-H 422 (CH3)2 CH-H 414 (CH3)3 C-H 405 Table of Bond Dissociation Enthalpies C-X bond BDE (kJ/mol) X2 and HX bonds BDE (kJ/mol) CH3-C1 351 CI 247 CH-C1 355 НСІ 431 (CH3)2CH-C 355 (CH3)3C-CI 355 CH3 CH3 CH3CHCHCH3 CH3CHCH2CH3 + a Cl2 CI HCI Using the table of bond dissociation energies in the first part of this question: Calculate AH for this reaction. kJ/mol Overall, this reaction is CH3 CH3CHCHCH3 CH3 CH3CHCH2CH3 + b...
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)...
1) A chemical reaction and a table of bond dissociation energies are shown below. H3C H НАС + H2O HOZCHz H2C H acid HzC catalyst Bond BDE (KJ/mol) Bond BDE (KJ/mol) Csp3-H 410 Csp2-Csp2 sigma 418 Csp2-H 427 Csp2-Csp2 pi 264 Csp-H 523 C-O sigma 355 Csp3-Csp3 368 C-O pi 261 Csp2-Csp3 418 HO-H 460 a) Calculate the enthalpy change (AH) for the reaction. Remember to include the sign and units. b) If you touched the outside of the reaction...
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