Chemistry: The Molecular Science
5th Edition
ISBN: 9781285199047
Author: John W. Moore, Conrad L. Stanitski
Publisher: Cengage Learning
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Textbook Question
Chapter 6, Problem 36QRT
Light of appropriate wavelength can break
(a) Calculate the energy required to dissociate (i) O2 and (ii) H2O2.
(b) Consider the results of part (a). How well do they correlate with the Lewis structures of O2 and H2O2? Explain your answer.
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How do I (a) determine the energy change in the following reaction2 O2 + CH4→ CO2 + 2 H2Ogiven the following bond dissociation energies:C-C 340kJ/mol; C-H 420kJ/mol; O=O 490 kJ/mol; O-H 460 kJ/mol; C=O 720 kJ/mol.
(b) Is the reaction exothermic or endothermic? Explaination?
Do you expect the following reaction to occur? Why?
Average Bond Dissociation Energies at 298 K
Bond
Energy, kJ mol1
H-H
432
O=0
495
H-O
467
The tables above contain information for determining thermodynamic properties of the reaction below.
2H,(g) + 02(8) - 2H,O(g)
(a) Calculate the AH° for the reaction above, using the table of average bond dissociation energy.
(b) Use the table below to calculate the entropy for the formation of water.
2H, + 02 - 2H,O
Substance
S°(J/mol· K)
H2
131.0
H20
69.91
O2
205.0
(c) Calculate the value of AG°298K for the synthesis of water.
Chapter 6 Solutions
Chemistry: The Molecular Science
Ch. 6.2 - Write Lewis structures for (a) NF3, (b) N2H4, and...Ch. 6.3 - Prob. 6.1ECh. 6.3 - Prob. 6.2PSPCh. 6.4 - Prob. 6.2CECh. 6.4 - Write Lewis structures for (a) nitrosyl ion, NO+;...Ch. 6.5 - Prob. 6.4CECh. 6.5 - Prob. 6.5CECh. 6.5 - Prob. 6.4PSPCh. 6.6 - Prob. 6.5PSPCh. 6.6 - Use Equation 6.1 and values from Table 6.2 to...
Ch. 6.6 - Prob. 6.6CECh. 6.7 - Prob. 6.7PSPCh. 6.7 - Prob. 6.7CECh. 6.8 - Prob. 6.8PSPCh. 6.9 - Prob. 6.9PSPCh. 6.9 - Prob. 6.9CECh. 6.10 - Prob. 6.10PSPCh. 6.11 - Prob. 6.10ECh. 6.11 - Prob. 6.11ECh. 6.11 - Prob. 1CECh. 6.11 - Prob. 2CECh. 6.12 - Repeat Problem-Solving Example 6.11, but use N2...Ch. 6.12 - Use MO theory to predict the bond order and the...Ch. 6 - Prob. 1QRTCh. 6 - Prob. 2QRTCh. 6 - Prob. 3QRTCh. 6 - Prob. 4QRTCh. 6 - Prob. 5QRTCh. 6 - Prob. 6QRTCh. 6 - Which of these molecules have an odd number of...Ch. 6 - Prob. 8QRTCh. 6 - Prob. 9QRTCh. 6 - Prob. 10QRTCh. 6 - Prob. 11QRTCh. 6 - Prob. 12QRTCh. 6 - Explain in your own words why the energy of two H...Ch. 6 - Prob. 14QRTCh. 6 - Prob. 15QRTCh. 6 - Prob. 16QRTCh. 6 - Prob. 17QRTCh. 6 - Prob. 18QRTCh. 6 - Prob. 19QRTCh. 6 -
Write Lewis structures for
tetracyanoethene,...Ch. 6 - Prob. 21QRTCh. 6 - Prob. 22QRTCh. 6 - Prob. 23QRTCh. 6 - Prob. 24QRTCh. 6 - Prob. 25QRTCh. 6 - Prob. 26QRTCh. 6 - Prob. 27QRTCh. 6 - Prob. 28QRTCh. 6 - Prob. 29QRTCh. 6 - For each pair of bonds, predict which is the...Ch. 6 - Prob. 31QRTCh. 6 - Prob. 32QRTCh. 6 - Which bond requires more energy to break: the...Ch. 6 -
Estimate ΔrH° for forming 2 mol ammonia from...Ch. 6 - Prob. 35QRTCh. 6 - Light of appropriate wavelength can break chemical...Ch. 6 - Prob. 37QRTCh. 6 - Prob. 38QRTCh. 6 - Prob. 39QRTCh. 6 - Acrolein is the starting material for certain...Ch. 6 - Prob. 41QRTCh. 6 - Prob. 42QRTCh. 6 - Write the correct Lewis structure and assign a...Ch. 6 - Prob. 44QRTCh. 6 - Prob. 45QRTCh. 6 - Two Lewis structures can be written for nitrosyl...Ch. 6 - Prob. 47QRTCh. 6 - Prob. 48QRTCh. 6 - Prob. 49QRTCh. 6 - Prob. 50QRTCh. 6 - Several Lewis structures can be written for...Ch. 6 - Prob. 52QRTCh. 6 - Prob. 53QRTCh. 6 - Prob. 54QRTCh. 6 - Prob. 55QRTCh. 6 - Draw resonance structures for each of these ions:...Ch. 6 - Three known isomers exist of N2CO, with the atoms...Ch. 6 - Write the Lewis structure for (a) BrF5 (b) IF5 (c)...Ch. 6 - Write the Lewis structure for
BrF3
XeF4
Ch. 6 - Prob. 60QRTCh. 6 - Prob. 61QRTCh. 6 - Prob. 62QRTCh. 6 - All carbon-to-carbon bond lengths are identical in...Ch. 6 - Prob. 64QRTCh. 6 - Prob. 65QRTCh. 6 - Prob. 66QRTCh. 6 - Prob. 67QRTCh. 6 - Prob. 68QRTCh. 6 - Prob. 69QRTCh. 6 - Prob. 70QRTCh. 6 - Using just a periodic table (not a table of...Ch. 6 - The CBr bond length in CBr4 is 191 pm; the BrBr...Ch. 6 - Prob. 73QRTCh. 6 -
Acrylonitrile is the building block of the...Ch. 6 - Prob. 75QRTCh. 6 - Write Lewis structures for (a) SCl2 (b) Cl3+ (c)...Ch. 6 - Prob. 77QRTCh. 6 - Prob. 78QRTCh. 6 - A student drew this incorrect Lewis structure for...Ch. 6 - This Lewis structure for SF5+ is drawn...Ch. 6 - Tribromide, Br3, and triiodide, I3, ions are often...Ch. 6 - Explain why nonmetal atoms in Period 3 and beyond...Ch. 6 - Prob. 83QRTCh. 6 - Prob. 84QRTCh. 6 - Prob. 85QRTCh. 6 - Prob. 86QRTCh. 6 - Which of these molecules is least likely to exist:...Ch. 6 - Write the Lewis structure for nitrosyl fluoride,...Ch. 6 - Prob. 91QRTCh. 6 - Methylcyanoacrylate is the active ingredient in...Ch. 6 - Aspirin is made from salicylic acid, which has...Ch. 6 - Prob. 94QRTCh. 6 - Prob. 95QRTCh. 6 - Prob. 96QRTCh. 6 - Prob. 97QRTCh. 6 - Prob. 98QRTCh. 6 - Nitrosyl azide, N4O, is a pale yellow solid first...Ch. 6 - Write the Lewis structures for (a) (Cl2PN)3 (b)...Ch. 6 - Nitrous oxide, N2O, is a linear molecule that has...Ch. 6 - The azide ion, N3, has three resonance hybrid...Ch. 6 - Hydrazoic acid, HN3, has three resonance hybrid...Ch. 6 - Prob. 104QRTCh. 6 - Experimental evidence indicates the existence of...Ch. 6 - Prob. 106QRTCh. 6 - Prob. 107QRTCh. 6 - Pipeline, the active ingredient in black pepper,...Ch. 6 - Sulfur and oxygen form a series of 2 anions...Ch. 6 - Prob. 110QRTCh. 6 - Prob. 111QRTCh. 6 - Prob. 112QRTCh. 6 - Prob. 113QRTCh. 6 - Prob. 114QRTCh. 6 - Prob. 115QRTCh. 6 - Prob. 116QRTCh. 6 - Prob. 117QRTCh. 6 - Prob. 118QRTCh. 6 - Prob. 6.ACPCh. 6 - Prob. 6.BCPCh. 6 - Prob. 6.CCP
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