Chemistry: A Molecular Approach
3rd Edition
ISBN: 9780321809247
Author: Nivaldo J. Tro
Publisher: Prentice Hall
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Chapter 11, Problem 20E
Interpretation Introduction
To explain: The volatility of a substance is related to the intermolecular forces present within the substance.
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111
States of Matter
Understanding conceptual components of the enthalpy of solution
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A small amount of acetonitrile (CH, CN) is dissolved in a large amount of water. Imagine separating this process into the four stages sketched below. (These
sketches show only a portion of the substances, so you can see the density and distribution of atoms and molecules in them.)
CH,CN
H₂O
B
88
C
Use these sketches to answer the questions in the table below.
The enthalpy of solution AH is negative
soln
when CH3CN dissolves in water. Use this
information to list the stages in order of increasing
enthalpy.
Would heat be absorbed or released if the system
moved from Stage C to D?
What force would oppose or favor the system
moving from Stage C to D? Check all that apply.
1
absorbed
O released
neither absorbed nor released.
none
O ionic bonding force
covalent bonding force…
In a system with an anodic overpotential, the variation of ŋ as a function of
the current density:
1. at low fields is linear 2. at higher fields, it follows Tafel's law
Find the range of current densities for which the overpotential has the same
value as when calculated for cases 1 and 2 (maximum relative difference of
5% with respect to the behavior for higher fields). To which overpotential
range does this correspond?
Data: 10 = 1.5 mA cm², T = 300°C, ẞ = 0.64, R = 8.314 J K 1 mol¹ and F = 96485
C mol-1.
Indicate 10.6 with only one significant figure.
Chapter 11 Solutions
Chemistry: A Molecular Approach
Ch. 11 - Prob. 1SAQCh. 11 - Q2. Liquid nitrogen boils at 77 K. The image shown...Ch. 11 - Q3. Based on the expected intermolecular forces,...Ch. 11 - Q4. Which substance experiences dipole–dipole...Ch. 11 - Q5. One of these substances is a liquid at room...Ch. 11 - Prob. 6SAQCh. 11 - Q7. Determine the amount of heat (in kJ) required...Ch. 11 - Prob. 8SAQCh. 11 - Prob. 9SAQCh. 11 - Prob. 10SAQ
Ch. 11 - Q11. How many atoms are in the body-centered cubic...Ch. 11 - Q12. Rhodium crystallizes in a face-centered cubic...Ch. 11 - Prob. 13SAQCh. 11 - Prob. 14SAQCh. 11 - Prob. 15SAQCh. 11 - Prob. 1ECh. 11 - 2. Why are intermolecular forces important?
Ch. 11 - 3. What are the main properties of liquids (in...Ch. 11 - 4. What are the main properties of solids (in...Ch. 11 - Prob. 5ECh. 11 - Prob. 6ECh. 11 - Prob. 7ECh. 11 - Prob. 8ECh. 11 - Prob. 9ECh. 11 - Prob. 10ECh. 11 - Prob. 11ECh. 11 - Prob. 12ECh. 11 - 13. What is hydrogen bonding? How can you predict...Ch. 11 - Prob. 14ECh. 11 - Prob. 15ECh. 11 - Prob. 16ECh. 11 - Prob. 17ECh. 11 - Prob. 18ECh. 11 - 19. Why is vaporization endothermic? Why is...Ch. 11 - 20. How is the volatility of a substance related...Ch. 11 - 21. What is the heat of vaporization for a liquid...Ch. 11 - 22. Explain the process of dynamic equilibrium....Ch. 11 - Prob. 23ECh. 11 - Prob. 24ECh. 11 - Prob. 25ECh. 11 - 26. What is the Clausius–Clapeyron equation and...Ch. 11 - Prob. 27ECh. 11 - Prob. 28ECh. 11 - Prob. 29ECh. 11 - Prob. 30ECh. 11 - 31. Examine the heating curve for water in Section...Ch. 11 - Prob. 32ECh. 11 - Prob. 33ECh. 11 - What is the significance of crossing a line in a...Ch. 11 - Prob. 35ECh. 11 - Prob. 36ECh. 11 - 37. What is a crystalline lattice? How is the...Ch. 11 - Make a drawing of each unit cell: simple cubic,...Ch. 11 - Prob. 39ECh. 11 - 40. What is the difference between hexagonal...Ch. 11 - Prob. 41ECh. 11 - Prob. 42ECh. 11 - Prob. 43ECh. 11 - Prob. 44ECh. 11 - What are the three basic types of atomic solids?...Ch. 11 - Prob. 46ECh. 11 - Prob. 47ECh. 11 - Prob. 48ECh. 11 - Prob. 49ECh. 11 - Prob. 50ECh. 11 - Prob. 51ECh. 11 - Prob. 52ECh. 11 - 39. Arrange these compounds in order of increasing...Ch. 11 - Prob. 54ECh. 11 - Prob. 55ECh. 11 - Prob. 56ECh. 11 - Prob. 57ECh. 11 - Prob. 58ECh. 11 - Prob. 59ECh. 11 - Prob. 60ECh. 11 - Prob. 61ECh. 11 - Prob. 62ECh. 11 - Prob. 63ECh. 11 - 50. Explain why the viscosity of multigrade motor...Ch. 11 - 51. Water in a glass tube that contains grease or...Ch. 11 - Prob. 66ECh. 11 - Prob. 67ECh. 11 - Prob. 68ECh. 11 - Prob. 69ECh. 11 - Prob. 70ECh. 11 - 57. The human body obtains 915 kJ of energy from a...Ch. 11 - Prob. 72ECh. 11 - Prob. 73ECh. 11 - Prob. 74ECh. 11 - Prob. 75ECh. 11 - Prob. 76ECh. 11 - Prob. 77ECh. 11 - Prob. 78ECh. 11 - Prob. 79ECh. 11 - Prob. 80ECh. 11 - Prob. 81ECh. 11 - Prob. 82ECh. 11 - Prob. 83ECh. 11 - 72. How much heat (in kJ) is evolved in converting...Ch. 11 - Prob. 85ECh. 11 - 74. Consider the phase diagram for iodine shown...Ch. 11 - Prob. 87ECh. 11 - Prob. 88ECh. 11 - Prob. 89ECh. 11 - Prob. 90ECh. 11 - Prob. 91ECh. 11 - Prob. 92ECh. 11 - Prob. 93ECh. 11 - 82. How is the density of solid water compared to...Ch. 11 - Prob. 95ECh. 11 - Prob. 96ECh. 11 - 97. Determine the number of atoms per unit cell...Ch. 11 - 3098. Determine the coordination number for each...Ch. 11 - Prob. 99ECh. 11 - Prob. 100ECh. 11 - Prob. 101ECh. 11 - Prob. 102ECh. 11 - Prob. 103ECh. 11 - Prob. 104ECh. 11 - Prob. 105ECh. 11 - 106. Identify each solid as molecular, ionic, or...Ch. 11 - 10741. Which solid has the highest melting point?...Ch. 11 - Prob. 108ECh. 11 - Prob. 109ECh. 11 - Prob. 110ECh. 11 - Prob. 111ECh. 11 - Prob. 112ECh. 11 - Prob. 113ECh. 11 - Prob. 114ECh. 11 - Prob. 115ECh. 11 - 62116. How many molecular orbitals are present in...Ch. 11 - Prob. 117ECh. 11 - Prob. 118ECh. 11 - 83119. Explain the observed trend in the melting...Ch. 11 - Prob. 120ECh. 11 - Prob. 121ECh. 11 - Prob. 122ECh. 11 - Prob. 123ECh. 11 - Prob. 124ECh. 11 - Prob. 125ECh. 11 - 90. A sample of steam with a mass of 0.552 g and...Ch. 11 - Prob. 127ECh. 11 - Prob. 128ECh. 11 - Prob. 129ECh. 11 - 94. A sealed flask contains 0.55 g of water at 28...Ch. 11 - Prob. 131ECh. 11 - Prob. 132ECh. 11 - Prob. 133ECh. 11 - Prob. 134ECh. 11 - 135. The unit cell in a crystal of diamond belongs...Ch. 11 - Prob. 136ECh. 11 - Prob. 137ECh. 11 - 96. Consider a planet where the pressure of the...Ch. 11 - 139. An unknown metal is found to have a density...Ch. 11 - 140. When spheres of radius r are packed in a...Ch. 11 - Prob. 141ECh. 11 - Prob. 143ECh. 11 - Prob. 144ECh. 11 - Prob. 145ECh. 11 - 98. Given that the heat of fusion of water is...Ch. 11 - 99. The heat of combustion of CH4 is 890.4 kJ/mol,...Ch. 11 - Prob. 148ECh. 11 - Prob. 149ECh. 11 - 102. Butane (C4H10) has a heat of vaporization of...Ch. 11 - Prob. 159ECh. 11 - 104. One prediction of global warming is the...Ch. 11 - Prob. 151ECh. 11 - Prob. 152ECh. 11 - Prob. 153ECh. 11 - Prob. 154ECh. 11 - Prob. 155ECh. 11 - Prob. 156ECh. 11 - Prob. 157ECh. 11 - Prob. 158E
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