Physical Chemistry
2nd Edition
ISBN: 9781285969770
Author: Ball
Publisher: Cengage
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Chapter 7, Problem 7.22E
Interpretation Introduction
Interpretation: The derivation of equation 7.23 from the equation 7.19 is to be stated.
Concept introduction: According to Raoult’s law, the vapor pressure of the solution is equal to the product of vapor pressure of the solvent and its mole fraction in the solution.
According to the Dalton’s law of gases, the relation of the partial pressure of a component is equal to the product of total pressure of the gas mixture and mole fraction of that component.
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Part II. Given two isomers: 2-methylpentane (A) and 2,2-dimethyl butane (B) answer the following:
(a) match structures of isomers given their mass spectra below (spectra A and spectra B)
(b) Draw the fragments given the following prominent peaks from
each spectrum:
Spectra A m/2 =43 and 1/2-57
spectra B m/2 = 43
(c) why is 1/2=57 peak in spectrum A more intense compared
to the same peak in spectrum B.
Relative abundance
Relative abundance
100
A
50
29
29
0
10
-0
-0
100
B
50
720
30
41
43
57
71
4-0
40
50
60 70
m/z
43
57
8-0
m/z = 86
M
90 100
71
m/z = 86
M
-O
0
10 20 30
40 50
60
70
80
-88
m/z
90
100
Part IV. C6H5 CH2CH2OH is an aromatic compound which was subjected to Electron Ionization - mass
spectrometry (El-MS) analysis. Prominent m/2 values: m/2 = 104 and m/2 = 9) was obtained.
Draw the structures of these fragments.
For each reaction shown below follow the curved arrows to complete each equationby showing the structure of the products. Identify the acid, the base, the conjugated acid andconjugated base. Consutl the pKa table and choose the direciton theequilibrium goes. However show the curved arrows. Please explain if possible.
Chapter 7 Solutions
Physical Chemistry
Ch. 7 - Prob. 7.1ECh. 7 - Prob. 7.2ECh. 7 - Prob. 7.3ECh. 7 - Prob. 7.4ECh. 7 - 7.5. For this chemical equilibrium in an enclosed...Ch. 7 - 7.6. The production of nitrogen gas for automobile...Ch. 7 - Prob. 7.7ECh. 7 - Prob. 7.8ECh. 7 - 7.9. For a solution of and in which , what are...Ch. 7 - Prob. 7.10E
Ch. 7 - Prob. 7.11ECh. 7 - Prob. 7.12ECh. 7 - Prob. 7.13ECh. 7 - 7.14. Determine the total equilibrium pressure of...Ch. 7 - Prob. 7.15ECh. 7 - 7.16. Many police departments use breath tests to...Ch. 7 - Prob. 7.17ECh. 7 - 7.18. The vapor pressures of pure liquid A and...Ch. 7 - 7.19. At , the vapor pressure of pure ethanol, ,...Ch. 7 - 7.20. A solution of methanol () and ethanol () has...Ch. 7 - 7.21. At , the vapor pressure of pure ethanol, ,...Ch. 7 - Prob. 7.22ECh. 7 - Prob. 7.23ECh. 7 - Prob. 7.24ECh. 7 - Prob. 7.25ECh. 7 - Prob. 7.26ECh. 7 - Prob. 7.27ECh. 7 - Prob. 7.28ECh. 7 - What are mixG and mixS for the combination of...Ch. 7 - Prob. 7.30ECh. 7 - Prob. 7.31ECh. 7 - Prob. 7.32ECh. 7 - Prob. 7.33ECh. 7 - Prob. 7.34ECh. 7 - Prob. 7.35ECh. 7 - Prob. 7.36ECh. 7 - Prob. 7.37ECh. 7 - Prob. 7.38ECh. 7 - Convert the units of Henrys law constant for CO2,...Ch. 7 - Prob. 7.40ECh. 7 - Prob. 7.41ECh. 7 - Prob. 7.42ECh. 7 - 7.43. The Henry’s law constant for methyl...Ch. 7 - Prob. 7.44ECh. 7 - 7.45. At , the mole fraction of air in water is...Ch. 7 - 7.45. At , the mole fraction of nitrogen, , in...Ch. 7 - Prob. 7.47ECh. 7 - 7.48. Nitrogen narcosis begins to affect scuba...Ch. 7 - Prob. 7.49ECh. 7 - 7.50. What is the approximate molarity of a...Ch. 7 - 7.51. Calculate the solubility of phenol, , in...Ch. 7 - a Convert the calculated mole fraction of...Ch. 7 - Prob. 7.53ECh. 7 - Consider the following solutions: Sodium chloride...Ch. 7 - Determine how ideal the following solutions are by...Ch. 7 - Iron metal has a fusH value of 14.9kJ/mol and is...Ch. 7 - Prob. 7.57ECh. 7 - 7.58. Do communities that use salt in the winter...Ch. 7 - 7.59. Starting from in figure in the liquid...Ch. 7 - Prob. 7.60ECh. 7 - Prob. 7.61ECh. 7 - Estimate the solubility of Na in Hg at 0C. The...Ch. 7 - Prob. 7.63ECh. 7 - Prob. 7.64ECh. 7 - Explain how the unit molarity automatically...Ch. 7 - Prob. 7.66ECh. 7 - The vapor pressure of isopropanol is 47.0mmHg at...Ch. 7 - A sample of 25.0g of solid anthracene is dissolved...Ch. 7 - Prob. 7.69ECh. 7 - A technician dissolves 12.00g of a nonvolatile...Ch. 7 - Prob. 7.71ECh. 7 - Estimate the osmotic pressure, freezing point, and...Ch. 7 - In February 2006, a pharmacy technician...Ch. 7 - Prob. 7.74ECh. 7 - Calculate the freezing point depression of mercury...Ch. 7 - Glacial acetic acid has a melting point of 16.0C...Ch. 7 - Prob. 7.77ECh. 7 - Prob. 7.78ECh. 7 - Use the system in exercise 7.62 to calculate the...Ch. 7 - Prob. 7.80ECh. 7 - Prob. 7.81ECh. 7 - Prob. 7.82ECh. 7 - Prob. 7.83ECh. 7 - Prob. 7.84ECh. 7 - Prob. 7.85ECh. 7 - Determine osmotic pressures for each solution...Ch. 7 - Prob. 7.87ECh. 7 - The vapor pressures of benzene and and 1,1...Ch. 7 - Prob. 7.89ECh. 7 - Tabulate the solubility of naphthalene in toluene...
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