What is the AH° for the reaction in kcal/mole? CH3 H2C- C-OH + HBr – -...
What is the ∆H° for the
reaction in kcal/mole?
QUESTION 4 What is the AH for the reaction in kcal/mole? CH3 CH3 H3C— C— OH + HBr H3C— C— Br + H2O CH3 CH3 BDE in kcal/mole • H-Br = 87.6 3° C-Br = 63 . 3° C-OH = 92 • H-OH = 119
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...
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...
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 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...
complete the following reactions
LE H3C-CH2-C-CH3 NaOH ОН HO + HO K2Cr2O7 H2C-CH-CH2-OH CH3 4x OH + HBr
give the compound name
= 0 CH3-CHY-CH2-CH2CH3 H3C-CH2-CH3 = H3C-CH2-CH2-CH2CH2-CH3 H2C=CH2 = H-C=C-CH3 = = H3C-CH2-CH2-OH = H2C=CH-CH2-CH2-CH3 = H3C-CH2-CH2-CH3 H3C-CH=CH-CH3 = = CH3-OH = CH3-CH2-OH = CH3-CH2-CH2-CH2-OH = CH3-CH-CH2-CH2-CH2-CH3 = 64 CH3-CH2-CH2-CH2-CH-OH = CH3-CH-CH2-CH, = H3C-CH2-C=0 H.C-CH2-CH2-CH2-C=0 HC-OH = H3C-CHCH2-f-OH H,C-CH2-COH
What reducing reagent can preform all of the following?
HC OH H2C OH H3C H3C ? Hzc O-CH3 H2C Hoc CI H,C
Which of the alkyl halides below will react the fastest in an
SN1 reaction?
CH3 CH3 CH3 CH H2C H2C H3C-C-I H-C-Br H3C-C-Br H-C-I CH3 CH3 CH3 CH3 CII-C C-C C-C C-C-IIC
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)...