Chemistry & Chemical Reactivity
10th Edition
ISBN: 9781337399074
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Textbook Question
Chapter 8, Problem 54PS
Phosgene, Cl2CO, is a highly toxic gas that was used as a weapon in World War 1. Using the bond dissociation enthalpies in Table 8.8, estimate the enthalpy change for the reaction of carbon monoxide and chlorine to produce phosgene.
CO(g) + Cl2(g) → Cl2CO(g)
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Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction:
2co(g) + 2NO(g)→2C02(g) + N2(g)
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Use average bond energies together with the standard enthalpy of formation of C( g) (718.4 kJ/mol) to estimate the standard enthalpy of formation of gaseous benzene, C6H6( g). (Remember that average bond energies apply to the gas phase only.) Compare the value you obtain using average bond energies to the actual standard enthalpy of formation of gaseous benzene,82.9 kJ/mol. What does the difference between these two values tell you about the stability of benzene?
Use bond energies to determine ΔHrxn for the reaction between ethanol and hydrogen chloride.
CH3CH2OH(g)+HCl(g)→CH3CH2Cl(g)+H2O(g)
Average Bond Energies
Bond
Bond Energy (kJ/mol)
H−C
414
H−O
464
H−F
565
H−Cl
431
H−Br
364
C−Cl
339
C−O
360
Cl−F
253
Cl−Cl
243
Br−Cl
218
Chapter 8 Solutions
Chemistry & Chemical Reactivity
Ch. 8.2 - Draw Lewis electron dot structures for CH3Cl...Ch. 8.2 - Prob. 8.2CYUCh. 8.2 - Prob. 8.3CYUCh. 8.2 - Prob. 8.4CYUCh. 8.3 - Prob. 8.5CYUCh. 8.4 - Draw resonance structures for the bicarbonate ion,...Ch. 8.5 - Sketch the Lewis structures for CIF2+ and CIF2....Ch. 8.6 - What is the shape of the dichloromethane (CH2C12)...Ch. 8.6 - Give the electron-pair geometry and molecular...Ch. 8.6 - Draw the Lewis structure for lCl2, and then decide...
Ch. 8.7 - For each of the following pairs of bonds, decide...Ch. 8.7 - Draw the resonance structures for SCN. What are...Ch. 8.8 - For each of the following molecules, decide...Ch. 8.8 - The electrostatic potential surface for SOCl2 is...Ch. 8.9 - Using the bond dissociation enthalpies in Table...Ch. 8.10 - Prob. 1.1ACPCh. 8.10 - Do any of the atoms in an ibuprofen molecule have...Ch. 8.10 - What is the most polar bond in the molecule?
Ch. 8.10 - Prob. 1.4ACPCh. 8.10 - Prob. 1.5ACPCh. 8.10 - Prob. 1.6ACPCh. 8.10 - Are there any 120° bond angles in ibuprofen? Any...Ch. 8.10 - Prob. 1.8ACPCh. 8.10 - Prob. 2.2ACPCh. 8.10 - Calculate the difference in electronegativity...Ch. 8.10 - Predict the bond dissociation enthalpy for a...Ch. 8.10 - Prob. 3.3ACPCh. 8 - Give the periodic group number and number of...Ch. 8 - Give the periodic group number and number of...Ch. 8 - For elements in Groups 4A-7A of the periodic...Ch. 8 - Prob. 4PSCh. 8 - Draw a Lewis structure for each of the following...Ch. 8 - Draw a Lewis structure for each of the following...Ch. 8 - Draw a Lewis structure for each of the following...Ch. 8 - Draw a Lewis structure for each of the following...Ch. 8 - Show all possible resonance structures for each of...Ch. 8 - Show all possible resonance structures for each of...Ch. 8 - Prob. 11PSCh. 8 - Draw a Lewis structure for each of the following...Ch. 8 - Determine the formal charge on each atom in the...Ch. 8 - Determine the formal charge on each atom in the...Ch. 8 - Determine the formal charge on each atom in the...Ch. 8 - Determine the formal charge on each atom in the...Ch. 8 - Draw a Lewis structure for each of the following...Ch. 8 - Prob. 18PSCh. 8 - Prob. 19PSCh. 8 - The following molecules or ions all have three...Ch. 8 - Draw a Lewis structure for each of the following...Ch. 8 - Draw a Lewis structure for each of the following...Ch. 8 - Give approximate values for the indicated bond...Ch. 8 - Give approximate values for the indicated bond...Ch. 8 - Phenylalanine is one of the natural amino acids...Ch. 8 - Acetylacetone has the structure shown here....Ch. 8 - For each pair of bonds, indicate the more polar...Ch. 8 - For each of the bonds listed below, tell which...Ch. 8 - Urea, (NH2)2CO, is used in plastics and...Ch. 8 - Considering both formal charges and bond...Ch. 8 - Considering both formal charge and bond...Ch. 8 - Three resonance structures are possible for...Ch. 8 - Three resonance structures are possible for the...Ch. 8 - Compare the electron dot structures of the...Ch. 8 - Compare the electron dot structures of the...Ch. 8 - The chemistry of the nitrite ion and HNO2: (a) Two...Ch. 8 - Draw the resonance structures for the formate ion,...Ch. 8 - Prob. 39PSCh. 8 - Consider the following molecules: (a) CH4 (b)...Ch. 8 - Which of the following molecules is(are) polar?...Ch. 8 - Prob. 42PSCh. 8 - Give the bond order for each bond in the following...Ch. 8 - Prob. 44PSCh. 8 - In each pair of bonds, predict which is shorter....Ch. 8 - In each pair of bonds, predict which is shorter....Ch. 8 - Prob. 47PSCh. 8 - Compare the carbon-oxygen bond lengths in the...Ch. 8 - Consider the carbon-oxygen bond in formaldehyde...Ch. 8 - Compare the nitrogen-nitrogen bond in hydrazine,...Ch. 8 - Ethanol can be made by the reaction of ethylene...Ch. 8 - Methanol can be made by partial oxidation of...Ch. 8 - Hydrogenation reactions, which involve the...Ch. 8 - Phosgene, Cl2CO, is a highly toxic gas that was...Ch. 8 - The compound oxygen difluoride is quite reactive,...Ch. 8 - Oxygen atoms can combine with ozone to form...Ch. 8 - Prob. 57GQCh. 8 - Prob. 58GQCh. 8 - Which of the following compounds or ions do not...Ch. 8 - Prob. 60GQCh. 8 - Draw resonance structures for the formate ion,...Ch. 8 - Prob. 62GQCh. 8 - Prob. 63GQCh. 8 - What is the principle of electroneutrality? Use...Ch. 8 - Prob. 65GQCh. 8 - Draw resonance structures for the SO2 molecule,...Ch. 8 - What are the orders of the NO bonds in NO2 and...Ch. 8 - Which has the greater ONO bond angle, NO2 or NO2+?...Ch. 8 - Compare the FClF angles in CIF2+ and ClF2. Using...Ch. 8 - Draw an electron dot structure for the cyanide...Ch. 8 - Draw the electron dot structure for the sulfite...Ch. 8 - Dinitrogen monoxide, N2O, can decompose to...Ch. 8 - The equation for the combustion of gaseous...Ch. 8 - The cyanate ion, OCN, has the least...Ch. 8 - Vanillin is the flavoring agent in vanilla extract...Ch. 8 - Explain why (a) XeF2 has a linear molecular...Ch. 8 - The formula for nitryl chloride is ClNO2 (in which...Ch. 8 - Hydroxyproline is a less-common amino acid. (a)...Ch. 8 - Amides are an important class of organic...Ch. 8 - Prob. 81GQCh. 8 - The molecule shown here. 2-furylmelhanethiol, is...Ch. 8 - Dihydroxyacetone is a component of quick-tanning...Ch. 8 - It is possible to draw three resonance structures...Ch. 8 - Acrolein is used to make plastics. Suppose this...Ch. 8 - Molecules in space: (a) In addition to molecules...Ch. 8 - 1,2-Dichloroethylene can be synthesized by adding...Ch. 8 - The molecule pictured below is epinephrine, a...Ch. 8 - You are doing an experiment in the laboratory and...Ch. 8 - Prob. 90ILCh. 8 - A paper published in the research Journal Science...Ch. 8 - Uracil is one of the bases in RNA, a close...Ch. 8 - Guanine is present in both DNA and RNA. (a) What...Ch. 8 - Prob. 94ILCh. 8 - Prob. 95SCQCh. 8 - Prob. 96SCQCh. 8 - Bromine-containing species play a role in...Ch. 8 - Acrylamide, H2C=CHCONH2, is a known neurotoxin and...
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- Using the bond dissociation enthalpies in Table 8.8, estimate the enthalpy of combustion of gaseous methane, CH4, to give water vapor and carbon dioxide gas.arrow_forwardWrite all resonance structures of chlorobenzene, C6H5Cl, a molecule with the same cyclic structure as benzene. In all structures, keep the CCl bond as a single bond. Which resonance structures are the most important?arrow_forwardUsing the standard enthalpy of formation data in Appendix G, calculate the bond energy of the carbon-sulfur double bond in CS2.arrow_forward
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