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 7.37E
Interpretation Introduction
Interpretation:
The reason as to why the ethanol made by adding a specific amount of benzene should not be ingested is to be explained.
Concept introduction:
Azeotropic mixture is composed of two or more mixtures where the boiling point of the overall mixture is constant. This mixture is also known as constant boiling point mixture.
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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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In the distillation of a pure substance (e.g., water), why does all of the water not vaporize at once when the boiling point is reached?
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Table of Physical Constant
Substance
Molecular Weight (g/mol)
Density
g/mL
Melting point and Boiling point 0C
Solubility
Benzoic Acid
Cellulose
Caffeine
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 Small alcohols like ethanol are completely miscible in water or water-based solvents. Long chain alcohols like decanol are nearly insoluble in water. Why do you think this happens?
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1A) When 13.62 g (about one tablespoon) of table sugar (sucrose, C12H22O11) is dissolved in 241.5 mL of water (d=0.997 g/mL), the final volume is 250.0 mL (about one cup). Calculate freezing and boiling points of this solution.
1B) If you had to bring this syrup to the boiling point for a recipe, would you expect it to take much more time than it takes to boil the same amount of pure water? Why or why not?
1C) Would the syrup freeze in a typical freezer (-18˚C)? Why or why not?
Please answer question 1A 1B and 1C
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MODIFIED TRUE OR FALSE
Write the correct word to make the statement true if it's false
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In the distillation of a pure substance ( e.g., water), why doesn't all the water vaporize when the boiling point is reached?
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If 180 g of KNO3 is dissolved in 300 g of water at the same temperature, would the solution be saturated or unsaturated? Explain your answer. Can any additional potassium nitrate be dissolved in the given amount of water and assuming the temperature does not change? If so, calculate the amount of additional potassium nitrate that can be dissolved.
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Construct the hypothetical phase diagram for metals A and B between temperatures of 600°C and 1000°C given the following information:● The melting temperature of metal A is 940°C.● The solubility of B in A is negligible at all temperatures.● The melting temperature of metal B is 830°C.● The maximum solubility of A in B is 12 wt% A, which occurs at 700°C.● At 600°C, the solubility of A in B is 8 wt% A.● One eutectic occurs at 700°C and 75 wt% B–25 wt% A.● A second eutectic occurs at 730°C and 60 wt% B–40 wt% A.● A third eutectic occurs at 755°C and 40 wt% B–60 wt% A.● One congruent melting point occurs at 780°C and 51 wt% B–49 wt% A.
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of the resulting solution is Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter at 22.4 °C causes the temperature to rise to 25.8 °C. What is the approximate amount of heat involved in the dissolution, assuming the heat capacity 4.18 J/g °C?
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Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY