Chemistry: A Molecular Approach
3rd Edition
ISBN: 9780321809247
Author: Nivaldo J. Tro
Publisher: Prentice Hall
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Chapter 11, Problem 69E
Interpretation Introduction
To explain: The comparison between spilling of water and vegetable oil over the skin on a hot day.
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In the video, we looked at the absorbance of a certain substance and how it varies
depending on what wavelength of light we are looking at. Below is a similar scan of a
different substance. What color BEST describes how this substance will appear?
Absorbance (AU)
Violet
Blue
Green
Orange
1.2
1.0-
0.8-
0.6-
0.4-
0.2
0.0
450
500
550
600
650
700
Wavelength (nm)
violet
indigo
blue
green
yellow orange
red
Red
O Cannot tell from this information
In the above graph, what causes -450 nm wavelength of light to have a higher
absorbance than light with a -550 nm wavelength? Check all that are true.
The distance the light travels is different
The different data points are for different substances
The concentration is different at different times in the experiment
Epsilon (molar absortivity) is different at different wavelengths
5. a. Data were collected for Trial 1 to determine the molar mass of a nonvolatile solid solute when dissolved in cyclo-
hexane. Complete the table for the analysis (See Report Sheet). Record calculated values with the correct number
of significant figures.
B. Freezing Point of Cyclohexane plus
Calculation Zone
Unknown Solute
2. Mass of cyclohexane (g)
10.14
Part C.4
3. Mass of added solute (g)
0.255
C. Calculations
1. k; for cyclohexane (°C⚫ kg/mol)
20.0
2. Freezing point change, AT, (°C)
3.04
Part C.6
3. Mass of cyclohexane in solution (kg)
4. Moles of solute, total (mol)
Show calculation.
5. Mass of solute in solution, total (g)
6. Molar mass of solute (g/mol)
Show calculation.
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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