Chemistry: Atoms First
2nd Edition
ISBN: 9780073511184
Author: Julia Burdge, Jason Overby Professor
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 13, Problem 13.80QP
Describe how you would use freezing-point depression and osmotic pressure measurements to determine the molar mass of a compound. Why are boiling-point elevation and vapor-pressure lowering normally not used for this purpose?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Chapter 13 Solutions
Chemistry: Atoms First
Ch. 13.2 - Determine for each solute whether the solubility...Ch. 13.2 - Predict whether iodine (I2) is more soluble in...Ch. 13.2 - Prob. 1PPBCh. 13.2 - Prob. 1PPCCh. 13.2 - Prob. 13.2.1SRCh. 13.2 - Prob. 13.2.2SRCh. 13.3 - Prob. 13.2WECh. 13.3 - Determine (a) the molality and (b) the percent by...Ch. 13.3 - Prob. 2PPBCh. 13.3 - Prob. 2PPC
Ch. 13.3 - Rubbing alcohol is a mixture of isopropyl alcohol...Ch. 13.3 - Prob. 3PPACh. 13.3 - Prob. 3PPBCh. 13.3 - Prob. 3PPCCh. 13.3 - Prob. 13.3.1SRCh. 13.3 - Prob. 13.3.2SRCh. 13.3 - Prob. 13.3.3SRCh. 13.3 - Prob. 13.3.4SRCh. 13.4 - Calculate the concentration of carbon dioxide in a...Ch. 13.4 - Calculate the concentration of CO2 in water at 25C...Ch. 13.4 - Prob. 4PPBCh. 13.4 - Prob. 4PPCCh. 13.4 - Prob. 13.4.1SRCh. 13.4 - Prob. 13.4.2SRCh. 13.5 - Prob. 13.5WECh. 13.5 - Calculate the vapor pressure of a solution made by...Ch. 13.5 - Calculate the mass of urea that should be...Ch. 13.5 - The diagrams [(i)(iv)] represent four closed...Ch. 13.5 - Ethylene glycol [CH2(OH)CH2(OH)] is a common...Ch. 13.5 - Prob. 6PPACh. 13.5 - What mass of ethylene glycol must be added to 1525...Ch. 13.5 - Prob. 6PPCCh. 13.5 - Prob. 13.7WECh. 13.5 - Prob. 7PPACh. 13.5 - Prob. 7PPBCh. 13.5 - Prob. 7PPCCh. 13.5 - Prob. 13.5.1SRCh. 13.5 - Prob. 13.5.2SRCh. 13.5 - Prob. 13.5.3SRCh. 13.5 - Prob. 13.5.4SRCh. 13.6 - Quinine was the first drug widely used to treat...Ch. 13.6 - Prob. 8PPACh. 13.6 - Prob. 8PPBCh. 13.6 - Prob. 8PPCCh. 13.6 - Prob. 13.9WECh. 13.6 - A solution made by dissolving 25 mg of insulin in...Ch. 13.6 - What mass of insulin must be dissolved in 50.0 mL...Ch. 13.6 - The first diagram represents one aqueous solution...Ch. 13.6 - Prob. 13.10WECh. 13.6 - An aqueous solution that is 0.0100 M in acetic...Ch. 13.6 - Prob. 10PPBCh. 13.6 - Prob. 10PPCCh. 13.6 - Prob. 13.6.1SRCh. 13.6 - Prob. 13.6.2SRCh. 13 - Prob. 13.1QPCh. 13 - Prob. 13.2QPCh. 13 - Prob. 13.3QPCh. 13 - Prob. 13.4QPCh. 13 - Prob. 13.5QPCh. 13 - Prob. 13.6QPCh. 13 - Explain why dissolving a solid almost always leads...Ch. 13 - Describe the factors that affect the solubility of...Ch. 13 - Prob. 13.9QPCh. 13 - Prob. 13.10QPCh. 13 - Arrange the following compounds in order of...Ch. 13 - Prob. 13.12QPCh. 13 - Prob. 13.13QPCh. 13 - Prob. 13.14QPCh. 13 - Prob. 13.15QPCh. 13 - Prob. 13.16QPCh. 13 - Prob. 13.17QPCh. 13 - Prob. 13.18QPCh. 13 - Prob. 13.19QPCh. 13 - Prob. 13.20QPCh. 13 - Prob. 13.21QPCh. 13 - Prob. 13.22QPCh. 13 - Prob. 13.23QPCh. 13 - Prob. 13.24QPCh. 13 - Fish breathe the dissolved air in water through...Ch. 13 - Prob. 13.26QPCh. 13 - Discuss the factors that influence the solubility...Ch. 13 - What is thermal pollution? Why is it harmful to...Ch. 13 - Prob. 13.29QPCh. 13 - A student is observing two beakers of water. One...Ch. 13 - A man bought a goldfish in a pet shop. Upon...Ch. 13 - A 3.20-g sample of a salt dissolves in 9.10 g of...Ch. 13 - The solubility of KNO3 is 155 g per 100 g of water...Ch. 13 - Prob. 13.34QPCh. 13 - The solubility of CO2 in water at 25C and 1 atm is...Ch. 13 - The solubility of N2 in blood at 37C and at a...Ch. 13 - The difference between water-soluble and...Ch. 13 - Predict whether each vitamin will be water soluble...Ch. 13 - Prob. 13.39QPCh. 13 - The first diagram represents an open system with...Ch. 13 - The diagrams represent an aqueous solution at two...Ch. 13 - Prob. 13.42QPCh. 13 - Prob. 13.43QPCh. 13 - Write the equation representing Raoults law, and...Ch. 13 - Prob. 13.45QPCh. 13 - Write the equations relating boiling-point...Ch. 13 - Prob. 13.47QPCh. 13 - Prob. 13.48QPCh. 13 - What is osmosis? What is a semipermeable membrane?Ch. 13 - Prob. 13.50QPCh. 13 - Prob. 13.51QPCh. 13 - Prob. 13.52QPCh. 13 - What are ion pairs? What effect does ion-pair...Ch. 13 - Prob. 13.54QPCh. 13 - Prob. 13.55QPCh. 13 - Prob. 13.56QPCh. 13 - Prob. 13.57QPCh. 13 - The vapor pressure of benzene is 100.0 mmHg at...Ch. 13 - The vapor pressures of ethanol (C2H5OH) and...Ch. 13 - The vapor pressure of ethanol (C2H5OH) at 20C is...Ch. 13 - Prob. 13.61QPCh. 13 - What arc the boiling point and freezing point of a...Ch. 13 - Prob. 13.63QPCh. 13 - How many liters of the antifreeze ethylene glycol...Ch. 13 - Prob. 13.65QPCh. 13 - Prob. 13.66QPCh. 13 - What are the normal freezing points and boiling...Ch. 13 - At 25C, the vapor pressure of pure water is 23.76...Ch. 13 - Both NaCl and CaCl2 are used to melt ice on roads...Ch. 13 - A 0.86 percent by mass solution of NaCl is called...Ch. 13 - Prob. 13.71QPCh. 13 - Calculate the osmotic pressure of a 0.0500 M MgSO4...Ch. 13 - The tallest trees known are the redwoods in...Ch. 13 - Calculate the difference in osmotic pressure (in...Ch. 13 - Prob. 13.75QPCh. 13 - Consider two aqueous solutions, one of sucrose...Ch. 13 - Arrange the following solutions in order of...Ch. 13 - Prob. 13.78QPCh. 13 - Indicate which compound in each of the following...Ch. 13 - Describe how you would use freezing-point...Ch. 13 - Prob. 13.81QPCh. 13 - The elemental analysis of an organic solid...Ch. 13 - A solution of 2.50 g of a compound having the...Ch. 13 - The molar mass of benzoic acid (C6H5COOH)...Ch. 13 - A solution containing 0.8330 g of a polymer of...Ch. 13 - Prob. 13.86QPCh. 13 - A solution of 6.S5 g of a carbohydrate m 100.0 g...Ch. 13 - A 0.036-M aqueous nitrous acid (HNO2) solution has...Ch. 13 - Prob. 13.89QPCh. 13 - Prob. 13.90QPCh. 13 - Prob. 13.91QPCh. 13 - Prob. 13.92QPCh. 13 - Prob. 13.93QPCh. 13 - Lysozyme is an enzyme that cleaves bacterial cell...Ch. 13 - The blood sugar (glucose) level of a diabetic...Ch. 13 - Trees in cold climates may be subjected to...Ch. 13 - Prob. 13.97QPCh. 13 - Two liquids A and B have vapor pressures of 76 and...Ch. 13 - Determine the van't Hoff factor of Na3PO4 in a...Ch. 13 - Prob. 13.100QPCh. 13 - Consider the three mercury manometers shown in the...Ch. 13 - A forensic chemist is given a white powder for...Ch. 13 - Prob. 13.103QPCh. 13 - A solution of 1.00 g of anhydrous aluminum...Ch. 13 - Explain why reverse osmosis is (theoretically)...Ch. 13 - What masses of sodium chloride, magnesium...Ch. 13 - The osmotic pressure of blood plasma is...Ch. 13 - Prob. 13.108QPCh. 13 - A protein has been isolated as a salt with the...Ch. 13 - A nonvolatile organic compound Z was used to make...Ch. 13 - Prob. 13.111QPCh. 13 - State which of the alcohols listed in Problem...Ch. 13 - Before a carbonated beverage bottle is sealed, it...Ch. 13 - Iodine (I2) is only sparingly soluble in water...Ch. 13 - (a) The root cells of plants contain a solution...Ch. 13 - Hemoglobin, the oxygen-transport protein, binds...Ch. 13 - Prob. 13.117QPCh. 13 - In the apparatus shown, what will happen if the...Ch. 13 - Concentrated hydrochloric acid is usually...Ch. 13 - Explain each of the following statements: (a) The...Ch. 13 - Prob. 13.121QPCh. 13 - A 1.32-g sample of a mixture of cyclohexane...Ch. 13 - How does each of the following affect the...Ch. 13 - A solution contains two volatile liquids A and B....Ch. 13 - Prob. 13.125QPCh. 13 - A mixture of ethanol and 1-propanol behaves...Ch. 13 - Ammonia (NH3) is very soluble in water, but...Ch. 13 - For ideal solutions, the volumes are additive....Ch. 13 - Acetic acid is a weak acid that ionizes in...Ch. 13 - Which vitamins (sec the given structures) do you...Ch. 13 - Calculate the percent by mass of the solute in...Ch. 13 - Acetic acid is a polar molecule and can form...Ch. 13 - Prob. 13.133QPCh. 13 - Fish in the Antarctic Ocean swim in water at about...Ch. 13 - Why are ice cubes (e.g., those you see in the...Ch. 13 - Prob. 13.136QPCh. 13 - Two beakers are placed in a closed container...Ch. 13 - (a) Derive the equation relating the molality (m)...Ch. 13 - At 27C, the vapor pressure of pure water is 23.76...Ch. 13 - A very long pipe is capped at one end with a...Ch. 13 - A mixture of liquids A and B exhibits ideal...Ch. 13 - Use Henrys law and the ideal gas equation to prove...Ch. 13 - Prob. 13.143QPCh. 13 - Prob. 13.144QPCh. 13 - The diagram here shows vapor pressure curves for...Ch. 13 - Valinomycin is an antibiotic. It functions by...Ch. 13 - Prob. 13.147QPCh. 13 - Prob. 13.148QPCh. 13 - Prob. 13.149QPCh. 13 - Explain why we cannot use osmotic pressure to...Ch. 13 - Which of the following processes is accompanied by...Ch. 13 - For each of the processes depicted here, determine...Ch. 13 - For each of the processes depicted here, determine...Ch. 13 - Prob. 13.4KSP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- A 1.00 mol/kg aqueous sulfuric acid solution, H2SO4,freezes at 4.04 C. Calculate i, the vant Hoff factor,for sulfuric acid in this solution.arrow_forward6-111 As noted in Section 6-8C, the amount of external pressure that must be applied to a more concentrated solution to stop the passage of solvent molecules across a semipermeable membrane is known as the osmotic pressure The osmotic pressure obeys a law similar in form to the ideal gas law (discussed in Section 5-4), where Substituting for pressure and solving for osmotic pressures gives the following equation: RT MRT, where M is the concentration or molarity of the solution. (a) Determine the osmotic pressure at 25°C of a 0.0020 M sucrose (C12H22O11) solution. (b) Seawater contains 3.4 g of salts for every liter of solution. Assuming the solute consists entirely of NaCl (and complete dissociation of the NaCI salt), calculate the osmotic pressure of seawater at 25°C. (c) The average osmotic pressure of blood is 7.7 atm at 25°C. What concentration of glucose (C6H12O6) will be isotonic with blood? (d) Lysozyme is an enzyme that breaks bacterial cell walls. A solution containing 0.150 g of this enzyme in 210. mL of solution has an osmotic pressure of 0.953 torr at 25°C. What is the molar mass of lysozyme? (e) The osmotic pressure of an aqueous solution of a certain protein was measured in order to determine the protein's molar mass. The solution contained 3.50 mg of protein dissolved in sufficient water to form 5.00 mL of solution. The osmotic pressure of the solution at 25°C was found to be 1.54 torr. Calculate the molar mass of the protein.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_forward
- What would be the freezing point of a solution formed by adding 1.0 mole of glucose (a molecular compound) to the following amounts of water? a. 250 g (0.25 kg) b. 500 g (0.500 kg) c. 1000 g (1.000 kg) d. 2000 g (2.000 kg)arrow_forwardPredict the relative solubility of each compound in the two solvents, based on the intermolecular attractions. (a) Is potassium iodide more soluble in water or in methylene chloride (CH2Cl2)? (b) Is toluene (C6H5CH3) more soluble in benzene (C6H6) or in water? (c) Is ethylene glycol (C2H4(OH)2) more soluble in hexane (C6H14) or in ethanol (C2H5OH)?arrow_forwardFreezing point depression is one means of determining the molar mass of a compound. The freezing point depression constant of benzene is 5.12 C/m. a. When a 0.503 g sample of the white crystalline dimer is dissolved in 10.0 g benzene, the freezing point of benzene is decreased by 0542 C. Verify that the molar mass of the dimer is 475 g/mol when determined by freezing point depression. Assume no dissociation of the dimer occurs. b. The correct molar mass of the dimer is 487 g/mol. Explain why the dissociation equilibrium causes the freezing point depression calculation to yield a lower molar mass for the dimer.arrow_forward
- 1. Vapor pressure: Arrange the following aqueous solutions in order of increasing vapor pressure at 25°C: 0.35 m C2H4(OH)2 (ethylene glycol, nonvolatile solute); 0.50 m sugar; 0.20 m KBr; and 0.20 m Na2SO4. C2H4(OH)2 < sugar < KBr < Na2SO4 Na2SO4 < sugar < KBr < C2H4(OH)2 sugar < C2H4(OH)2 < KBr < Na2SO4 KBr < sugar < Na2SO4 < C2H4(OH)2arrow_forwardTwo samples of sodium chloride solutions are brought to a boil on a stove. One of the solutions boils at 100.10C and the other at 100.15C. a Which of the solutions is more concentrated? b Which of the solutions would have a lower freezing point? c If you split the solution that boils at 100.1C into two portions, how would the boiling points of the samples compare? Which of the following statements do you agree with regarding the determination of your answer for part c? I. The question cannot be answered with certainty without knowing the volumes of each portion. II. Making the necessary assumption that the two samples have equal volumes, I was able to correctly answer the question. III. The volumes that the sample was split into are irrelevant when determining the correct answer.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning
Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
General, Organic, and Biological Chemistry
Chemistry
ISBN:9781285853918
Author:H. Stephen Stoker
Publisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
Chemistry: Matter and Change
Chemistry
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Glencoe/McGraw-Hill School Pub Co
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY