Chemistry: Structure and Properties Custom Edition for Rutgers University General Chemistry
15th Edition
ISBN: 9781269935678
Author: Nivaldo J. Tro
Publisher: Pearson Education
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Chapter 14, Problem 114E
Distillation is a method of purification based on successive separations and recondensations of vapor above a solution. Use the result of the previous problem to calculate the mole fraction of chloroform in the vapor above a solution obtained by three successive separations and condensations of the vapors above the original solution of carbon tetrachloride and chloroform. Show how this result supports the use of distillation as a separation method.
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Chapter 14 Solutions
Chemistry: Structure and Properties Custom Edition for Rutgers University General Chemistry
Ch. 14 - Which compound is most soluble in octane (C8H18)?...Ch. 14 - Prob. 2SAQCh. 14 - A 500.0-mL sample of pure water is allowed to come...Ch. 14 - Prob. 4SAQCh. 14 - Prob. 5SAQCh. 14 - Prob. 6SAQCh. 14 - What is the vapor pressure of an aqueous ethylene...Ch. 14 - Prob. 8SAQCh. 14 - What mass of glucose (C6H12O6) should you dissolve...Ch. 14 - Which aqueous solution has the highest boiling...
Ch. 14 - The osmotic pressure of a solution containing 22.7...Ch. 14 - The enthalpy of solution for NaOH is -44.6 kJ/mol....Ch. 14 - A 2.4-m aqueous solution of an ionic compound with...Ch. 14 - A solution is an equimolar mixture of two volatile...Ch. 14 - An aqueous solution is in equilibrium with a...Ch. 14 - What is a solution? What are the solute and...Ch. 14 - What does it mean when we say that a substance is...Ch. 14 - Why do two ideal gases thoroughly mix when...Ch. 14 - Prob. 4ECh. 14 - Prob. 5ECh. 14 - Explain how the relative strengths of...Ch. 14 - What does the statement like dissolves like mean...Ch. 14 - Prob. 8ECh. 14 - What is the heat of hydration(Hhydration)? How...Ch. 14 - Prob. 10ECh. 14 - How does temperature affect the solubility of a...Ch. 14 - Prob. 12ECh. 14 - How does pressure affect the solubility of a gas...Ch. 14 - What is Henry’s law? For what kinds of...Ch. 14 - Prob. 15ECh. 14 - How are parts by mass and parts by volume used in...Ch. 14 - Prob. 17ECh. 14 - What is Raoult’s law? For what kind of...Ch. 14 - Explain the difference between an ideal and a...Ch. 14 - Prob. 20ECh. 14 - Prob. 21ECh. 14 - What are colligative properties?Ch. 14 - Prob. 23ECh. 14 - Explain the significance of the van’t Hoff factor...Ch. 14 - Prob. 25ECh. 14 - Pick an appropriate solvent from Table 13.3 to...Ch. 14 - Which molecule would you expect to be more soluble...Ch. 14 - Prob. 28ECh. 14 - Prob. 29ECh. 14 - Prob. 30ECh. 14 - When ammonium chloride (NH4Cl) is dissolved in...Ch. 14 - Prob. 32ECh. 14 - Prob. 33ECh. 14 - Use the given data to calculate the heats of...Ch. 14 - Lithium iodide has a lattice energy of...Ch. 14 - Prob. 36ECh. 14 - A solution contains 25 g of NaCl per 100.0 g of...Ch. 14 - A solution contains 32 g of KNO3 per 100.0 g of...Ch. 14 - Prob. 39ECh. 14 - A KCI solution containing 42 g of KCI per 100.0 g...Ch. 14 - Some laboratory procedures involving...Ch. 14 - A person preparing a fish tank fills the tank with...Ch. 14 - Prob. 43ECh. 14 - Scuba divers breathing air at increased pressure...Ch. 14 - Calculate the mass of nitrogen dissolved at room...Ch. 14 - Use Henry’s law to determine the molar solubility...Ch. 14 - An aqueous NaCl solution is made using 112 g of...Ch. 14 - Prob. 48ECh. 14 - To what volume should you dilute 50.0 mL of a...Ch. 14 - Prob. 50ECh. 14 - Silver nitrate solutions are used to plate silver...Ch. 14 - Prob. 52ECh. 14 - Prob. 53ECh. 14 - Prob. 54ECh. 14 - You can purchase nitric acid in a concentrated...Ch. 14 - You can purchase hydrochloric acid in a...Ch. 14 - Prob. 57ECh. 14 - Prob. 58ECh. 14 - Prob. 59ECh. 14 - Prob. 60ECh. 14 - Prob. 61ECh. 14 - Prob. 62ECh. 14 - Prob. 63ECh. 14 - Prob. 64ECh. 14 - A beaker contains 100.0 mL of pure water. A second...Ch. 14 - Which solution has the highest vapor pressure? a....Ch. 14 - Calculate the vapor pressure of a solution...Ch. 14 - A solution contains naphthalene (C10H8) dissolved...Ch. 14 - A solution contains 50.0 g of heptane (C7H16) and...Ch. 14 - A solution contains a mixture of pentane and...Ch. 14 - A solution contains 4.08 g of chloroform (C3H8O3)...Ch. 14 - A solution of methanol and water has a mole...Ch. 14 - Prob. 73ECh. 14 - An ethylene glycol solution contains 21.2 g of...Ch. 14 - Calculate the freezing point and melting point of...Ch. 14 - Calculate the freezing point and melting point of...Ch. 14 - An aqueous solution containing 17.5 g of an...Ch. 14 - An aqueous solution containing 35.9 g of an...Ch. 14 - Calculate the osmotic pressure of a solution...Ch. 14 - Prob. 80ECh. 14 - A solution containing 27.55 mg of an unknown...Ch. 14 - Prob. 82ECh. 14 - Calculate the freezing point and boiling point...Ch. 14 - Calculate the freezing point and boiling point in...Ch. 14 - What mass of salt (NaCl) should you add to 1.00 L...Ch. 14 - Prob. 86ECh. 14 - Use the van’t Hoff factors in Table 13.7 to...Ch. 14 - Prob. 88ECh. 14 - A 1.2-m aqueous solution of an ionic compound with...Ch. 14 - A 0.95-m aqueous solution of an ionic compound...Ch. 14 - Prob. 91ECh. 14 - Prob. 92ECh. 14 - Prob. 93ECh. 14 - An aqueous CaCl2 solution has a vapor pressure of...Ch. 14 - Prob. 95ECh. 14 - Prob. 96ECh. 14 - Potassium perchlorate (KClO4) has a lattice energy...Ch. 14 - Sodium hydroxide (NaOH) has a lattice energy of...Ch. 14 - Prob. 99ECh. 14 - Prob. 100ECh. 14 - Prob. 101ECh. 14 - Water softeners often replace calcium ions in hard...Ch. 14 - Prob. 103ECh. 14 - Prob. 104ECh. 14 - Prob. 105ECh. 14 - Prob. 106ECh. 14 - An isotonic solution contains 0.90% NaCl mass to...Ch. 14 - Prob. 108ECh. 14 - Prob. 109ECh. 14 - When HNO2 dissolves in water, it partially...Ch. 14 - Prob. 111ECh. 14 - Prob. 112ECh. 14 - Prob. 113ECh. 14 - Distillation is a method of purification based on...Ch. 14 - Prob. 115ECh. 14 - Find the mass of urea (CH4N2O) needed to prepare...Ch. 14 - A solution contains 10.05 g of unknown compound...Ch. 14 - Prob. 118ECh. 14 - Prob. 119ECh. 14 - Prob. 120ECh. 14 - The small bubbles that form on the bottom of a...Ch. 14 - The vapor above a mixture of pentane and hexane at...Ch. 14 - A 1.10-g sample contains only glucose (C6H12O6)...Ch. 14 - Prob. 124ECh. 14 - Two alcohols, isopropyl alcohol and propyl...Ch. 14 - A metal, M, of atomic mass 96 amu reacts with...Ch. 14 - Prob. 127ECh. 14 - Prob. 128ECh. 14 - A solution is prepared by dissolving 11.60 g of a...Ch. 14 - Substance A is a nonpolar liquid and has only...Ch. 14 - Prob. 131ECh. 14 - Prob. 132ECh. 14 - Prob. 133ECh. 14 - Prob. 134E
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- Vapor-pressure lowering is a colligative property, as are freezing-point depression and boiling-point elevation. What is a colligative property? Why is the freezing point depressed for a solution as compared to the pure solvent? Why is the boiling point elevated for a solution as compared to the pure solvent? Explain how to calculate T for a freezing-point depression problem or a boiling-point elevation problem. Of the solvents listed in Table 10-5, which would have the largest freezing-point depression for a 0.50 molal solution? Which would have the smallest boiling-point elevation for a 0.50 molal solution? A common application of freezing-point depression and boiling-point elevation experiments is to provide a means to calculate the molar mass of a nonvolatile solute. What data are needed to calculate the molar mass of a nonvolatile solute? Explain how you would manipulate these data to calculate the molar mass of the nonvolatile solute.arrow_forwardA forensic chemist is given a white solid that is suspected of being pure cocaine (C17H21NO4, molar mass = 303.35 g/mol). She dissolves 1.22 0.01 g of the solid in 15.60 0.01 g benzene. The freezing point is lowered by 1.32 0.04C. a. What is the molar mass of the substance? Assuming that the percent uncertainty in the calculated molar mass is the same as the percent uncertainty in the temperature change, calculate the uncertainty in the molar mass. b. Could the chemist unequivocally state that the substance is cocaine? For example, is the uncertainty small enough to distinguish cocaine from codeine (C18H21NO3, molar mass = 299.36 g/mol)? c. Assuming that the absolute uncertainties in the measurements of temperature and mass remain unchanged, how could the chemist improve the precision of her results?arrow_forwardWhich solute has the greatest effect on the boiling pointof 1.00 kg of water: 50.0 g of strontium chloride (SrCl2) or 150.0 g of carbon tetrachloride (CCl4) ? Justify youranswer.arrow_forward
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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