Chemistry: The Central Science (14th Edition)
14th Edition
ISBN: 9780134414232
Author: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus
Publisher: PEARSON
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Chapter 18, Problem 33E
Alcohol-based fuels for automobiles lead to the production of formaldehyde (CH2O) in exhaust gases. Formaldehyde undergoes photodissociation, which contributes to photochemical smog:
CH2O + hv → CHO + H
The maximum
- In what part of the
electromagnetic spectrum is light with this wavelength found? - What is the maximum strength of a bond, in kJ/mol, that can be broken by absorption of a photon of 335-nm light?
- Compare you answer from part (b) to the appropriate value from Table 8.3. What do you conclude about C-H bond energy in formaldehyde?
- Write out the formaldehyde photodissociation reaction, showing Lewis-dot structures.
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The breaking of the O-O bond in peroxydisulfuryl
difluoride (FO,SOOSO,F) gives FO,SO:
(FO2SO)2 2 2 FO2SO
The compound on the left of this equation is a colorless
liquid that boils at 67.1°C. Its vapor, when heated to
about 100°C, turns brown as the product of the reaction
forms. Suppose that, in a sample of the vapor, the intensity
of the brown color doubles between 100°C and 110°C
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reaction.
1. Draw Lewis structures for ozone and for dioxygen. Using the data given below, qualitatively
compare the bond enthalpies, bond orders, and bond lengths of these two compounds.
O₂ (g) 20 (g) AH" =
+498 kJ
O(g) + O₂(g) →O, (g) AH-105 kJ
Sodium fluoroacetate (NaO2C2H2F) is a common poison used in New
Zealand to control invasive species, such as rats. It can be prepared
by the substitution of a C-CI bond in sodium chloroacetate
(NaO2C2H2CI) for a C-F bond. What is the approximate enthalpy
change for this substitution reaction on a 5.000 mole sample, based
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C-CI = 339.0 kJ/mol
C-F = 485.0 kJ/mol
Chapter 18 Solutions
Chemistry: The Central Science (14th Edition)
Ch. 18.1 - Prob. 18.1.1PECh. 18.1 - Prob. 18.1.2PECh. 18.1 - Prob. 18.2.1PECh. 18.1 - Practice Exercise 2 The bond energy in N2 is 941...Ch. 18.2 - Prob. 18.3.1PECh. 18.2 - Prob. 18.3.2PECh. 18 - Prob. 1DECh. 18 - Prob. 1ECh. 18 - Prob. 2ECh. 18 - The figure shows the three lowest regions of...
Ch. 18 - Prob. 4ECh. 18 - Where does the energy come from to evaporate the...Ch. 18 - Prob. 6ECh. 18 - Prob. 7ECh. 18 - The first stage of treatment at the reverse...Ch. 18 - Prob. 9ECh. 18 - Prob. 10ECh. 18 - Prob. 11ECh. 18 - How are the boundaries between the regions of the...Ch. 18 - Air pollution in the Mexico City metropolitan area...Ch. 18 - Prob. 14ECh. 18 - Prob. 15ECh. 18 - Prob. 16ECh. 18 - Prob. 17ECh. 18 - Prob. 18ECh. 18 - Distinguish between photodissociation and...Ch. 18 - Prob. 20ECh. 18 - Prob. 21ECh. 18 - Prob. 22ECh. 18 - Do the reactions involved in ozone depletion...Ch. 18 - Prob. 24ECh. 18 - Prob. 25ECh. 18 - Prob. 26ECh. 18 - Prob. 27ECh. 18 - Prob. 28ECh. 18 - Prob. 29ECh. 18 - Prob. 30ECh. 18 - Prob. 31ECh. 18 - Prob. 32ECh. 18 - Alcohol-based fuels for automobiles lead to the...Ch. 18 - Prob. 34ECh. 18 - Prob. 35ECh. 18 - Prob. 36ECh. 18 - Prob. 37ECh. 18 - Prob. 38ECh. 18 - Prob. 39ECh. 18 - Prob. 40ECh. 18 - Prob. 41ECh. 18 - Prob. 42ECh. 18 - Although there are many ions in seawater, the...Ch. 18 - The Ogallala aquifer described in the Close Look...Ch. 18 - Prob. 45ECh. 18 - Prob. 46ECh. 18 - List the common products formed when an organic...Ch. 18 - Prob. 48ECh. 18 - Prob. 49ECh. 18 - Prob. 50ECh. 18 - Prob. 51ECh. 18 - Prob. 52ECh. 18 - Prob. 53ECh. 18 - Prob. 54ECh. 18 - Prob. 55ECh. 18 - Prob. 56ECh. 18 - Prob. 57ECh. 18 - Prob. 58ECh. 18 - Prob. 59ECh. 18 - Prob. 60ECh. 18 - Prob. 61AECh. 18 - Prob. 62AECh. 18 - Prob. 63AECh. 18 - Prob. 64AECh. 18 - Prob. 65AECh. 18 - Prob. 66AECh. 18 - Prob. 67AECh. 18 - Explain, using Le Châtelier’s principle, why the...Ch. 18 - Prob. 69AECh. 18 - Prob. 70AECh. 18 - Prob. 71AECh. 18 - Prob. 72AECh. 18 - Prob. 73AECh. 18 - Prob. 74AECh. 18 - Prob. 75AECh. 18 - Prob. 76AECh. 18 - Prob. 77AECh. 18 - Prob. 78IECh. 18 - Prob. 79IECh. 18 - Prob. 80IECh. 18 - Prob. 81IECh. 18 - Prob. 82IECh. 18 - Prob. 83IECh. 18 - Prob. 84IECh. 18 - 18.85 The main reason that distillation is a...Ch. 18 - Prob. 86IECh. 18 - Prob. 87IECh. 18 - Prob. 88IECh. 18 - Prob. 89IECh. 18 - Prob. 90IECh. 18 - Prob. 91IECh. 18 - Prob. 92IE
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