Chapter 8 Problems

question

What is the bond Order C?C bonds in the benzene molecule?(8.3.2)
answer

1.5
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Which species is stronger bonds benzene or ethane(8.3.2)
answer

benzene
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which species is longer bonds benzene or ethane(8.3.2)
answer

ethane
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What is the bond order C?O bonds in acetate ion?(8.3.2)
answer

1.5
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Which species is longer bonds acetate ion or acetaldehyde molecule(8.3.2)
answer

acetate ion
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which species has stronger bonds, acetaldehyde molecule or acetate ion(8.3.2)
answer

acetaldehyde molecule
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Tutored Practice Problem 8.3.3 Calculate enthalpy of reaction using bond energies. CO(g) + Cl2(g) COCl2(g)
answer

-96 K/J
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Tutored Practice Problem 8.3.3 COUNTS TOWARDS GRADE Calculate enthalpy of reaction using bond energies.Cl2(g) + F2(g) 2ClF(g)
answer

-106 K/J
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8.3.1 Mastery A. Draw Lewis structure(s) for the sulfur dioxide molecule (SO2). If there are equivalent resonance structures, draw all of them. b. Draw Lewis structure(s) for the sulfur trioxide molecule (SO3). If there are equivalent resonance structures, draw all of them. c. What is the bond order of the S – O bonds in the sulfur dioxide molecule ? (enter a decimal number) d. In which species (SO2 or SO3) are the S-O bond(s) longer? e. In which species (SO2 or SO3) are the S-O bond(s) weaker?
answer

A. answer on notes. B. Answer on notes. C. 1.5 D. Sulfur Trioxide E. Sulfur Trioxide
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8.3.1 Mastery A. Draw Lewis structure(s) for the nitryl chloride molecule (NO2Cl). If there are equivalent resonance structures, draw all of them. b. Draw Lewis structure(s) for the nitronium ion (NO2+). If there are equivalent resonance structures, draw all of them. c. What is the bond order of the N – O bonds in the nitryl chloride molecule ? d. In which species (NO2Cl or NO2+) are the N-O bond(s) longer? e. In which species (NO2Cl or NO2+) are the N-O bond(s) weaker?
answer

A. answer on notes. B. Answer on notes. C. 1.5 D. Nitryl Chloride E. Nitryl Chloride
question

Draw Lewis structures for the N-methylidenehydroxylamine molecule (CH2NOH), the methylamine molecule ( CH3NH2 ), and the acetonitrile molecule ( CH3CN ), and then answer the questions that follow. Give the bond order (enter a number) for the carbon – nitrogen bond: Which species has the longest carbon – nitrogen bond, CH2NOH , CH3NH2 , or CH3CN ? Which species has the strongest carbon – nitrogen bond, CH2NOH , CH3NH2 , or CH3CN ?
answer

Lewis Structure on notes. 2,1,3 methylamine acetonitrile
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Mastery 8.3.2 Use average bond enthalpies (linked above) to calculate the enthalpy change for the following gas-phase reaction. 2HBr(g) + Cl2(g) 2HCl(g) + Br2(g)
answer

-83 K/J
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Mastery 8.3.2 Use average bond enthalpies (linked above) to calculate the enthalpy change for the following gas-phase reaction. C2H4(g) + H2(g) C2H6(g)
answer

-134 K/J

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