Physical Chemistry
2nd Edition
ISBN: 9781133958437
Author: Ball, David W. (david Warren), BAER, Tomas
Publisher: Wadsworth Cengage Learning,
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Chapter 7, Problem 7.88E
The vapor pressures of benzene and and
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3. (a) The Lattice enthalpy for the solid ionic compound AgBr is +900. kJ/mole.
Write the chemical equation that corresponds to the Lattice Enthalpy for AgBr(s) in the space above.
Then explain in your own words why this is a large positive number.
(b) The hydration enthalpy for AgBris -821 kJ/mole.
Write the chemical equation that corresponds to the Hydration Enthalpy for AgBr(s) in the space above.
Then explain in your own words why this is a large negative number.
(c) Would you expect this compound to be soluble in water? Why/Why not? Calculate anything you need in
order to figure this out, and explain your answer.
2. All liquids have characteristic vapor pressure that vary with temperature. The characteristic vapor pressure for pure water at 22°C is 19.827 mm Hg and at 30.0°C is 31.824 mm Hg. Use these data to calculate the change in enthalphy per mole for the vaporization
3. (a) The Lattice enthalpy for the solid ionic compound AgBr is +900. kJ/mole.
Write the chemical equation that corresponds to the Lattice Enthalpy for AgBr(s) in the space above.
Then explain in your own words why this is a large positive number.
(b) The hydration enthalpy for AgBr is -821 kJ/mole.
Write the chemical equation that corresponds to the Hydration Enthalpy for AgBr(s) in the space above.
Then explain in your own words why this is a large negative number.…
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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- Define the normal boiling point of water. Why does a sample of boiling water remain at the same temperature until all the water has been boiled? Define the normal freezing point of water. Sketch a representation of a heating/cooling curve for water, marking clearly the normal freezing and boiling points.arrow_forwardHeat is released when some solutions form; heat is absorbed when other solutions form. Provide a molecular explanation for the difference between these two types of spontaneous processes.arrow_forwardButane is a gas at room temperature; however, if you look closely at a butane lighter you see it contains liquid butane. Explain how it is possible to have liquid butane present.arrow_forward
- At 20.0 °C, the vapor pressure of cyclohexane, a nonpolar hydrocarbon, is 66.9 torr and that of toluene, a hydrocarbon related to benzene, is 21.1 torr. Calculate the expected vapor pressure of a mixture of cyclohexane and toluene that consists of 136 grams of each liquid.arrow_forwardThe normal boiling point of cyclohexane is 81 °C. What's the vapor pressure of cyclohexane at 81 °C?arrow_forwardThe vapor pressure of toluene at 90 deg celcius is 0.532 atm. The molar enthalpy of vaporization of the compound is 35.9 KJ/mol. What is the vapor pressure of toluene at 100 deg Celcius?arrow_forward
- 9.) Limonene (136.24 g/mol) is one of the compounds that are found in rinds of citrus fruits and it can be extracted via steam distillation. How much steam is required to extract 150 grams of limonene if it is distilled at a temperature of 85ºC? The vapor pressure of water at 85ºC is 433.6 Torr. A. 26.4 g B. 1506 g C. 733 g D. 96.9 garrow_forwardDigital Resources for Smartwork Direct Smartwork5 * Favorites < Module 4a: IMFS an... 画 03/14/21 ocramer5852@mail.kvcc.edu SCORE out of 15 Physical properties such as melting point, boiling point, and solubility are all dependent on the type of interparticle forces a substance experiences. Identify the type of interparticle force that has the greatest influence on the physical properties for each substance. Items (6 items) (Drag and drop into the appropriate area below) KI NH2OH CaCl2 PCI3 CH4 Cl2 Categories Dipole-dipole Forces Hydrogen Bonding lonic Bonding Dispersion Forces Drag and drop here Drag and drop here Drag and drop here Drag and drop here A SUBMIT ANSWER « 03/20arrow_forwardThe vapor pressure of methanol (CH₃OH) at 25°C is 127.2 torr. A 6.25-g sample of methanol is placed in a 3.00 L container at 25°C. If the container is closed and the methanol reaches equilibrium with its vapor, what mass (in grams) of liquid methanol remain?arrow_forward
- What is Δq for the vaporization of 50.0 g of Compound A (76.03 g/mol; ΔHvap is 31.6 kJ/mol)?arrow_forwardAt 20.0 °C, the vapor pressure of cyclohexane, a nonpolar hydrocarbon, is 66.9 torr and that of toluene, a hydrocarbon related to benzene, is 21.1 torr. Calculate the expected vapor pressure of a mixture of cyclohexane and toluene that consists of 124 grams of each liquid. Ptotal= torrarrow_forward22 23 24 25 26 27 28 29 11 12 15 16 17 18 19 20 21 Based on the graph which describes two liquids, A and B, select ALL of the FALSE statements. XA 1 DA The substance with the higher pure vapor pressure (P°) is A OB For any mixture of A and B (any ratio of A and B), the mole fraction of B in the vapor phase will be larger than the mole fraction of B in the liquid phase. OC An equimolar mixture of liquids A and B are placed in a closed container (25 °C). At equilibrium, the vapor above the mixture will contain more moles of B than A OD. The substance with the higher pure vapor pressure (P°) is B DE Substance B has greater intermolecular forces than A 23 3. 5 E R т A F K ommand command option vapor pressurearrow_forward
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