CHEMISTRY THE CENTRAL SCIENCE 14TH EDI
14th Edition
ISBN: 9780134863016
Author: Brown
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 13, Problem 22E
KBr is relatively soluble in water, yet its enthalpy of solution is + 19.8 kj/mol. Which of the following statements provides the best explanation for this behavior?
a. Potassium salts are always soluble in water.
b. The entropy of mixing must be unfavorable.
c. The enthalpy of mixing must be small compared to the enthalpies for breaking up water−−water interactions and K-Br ionic interactions.
d. KBr has a high molar mass compared to other salts like NaC1.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionChapter 13 Solutions
CHEMISTRY THE CENTRAL SCIENCE 14TH EDI
Ch. 13.3 - Prob. 13.1.1PECh. 13.3 - Prob. 13.1.2PECh. 13.3 - Prob. 13.2.1PECh. 13.3 - Prob. 13.2.2PECh. 13.4 - Prob. 13.3.1PECh. 13.4 - Prob. 13.3.2PECh. 13.4 - Prob. 13.4.1PECh. 13.4 - Prob. 13.4.2PECh. 13.4 - Prob. 13.5.1PECh. 13.4 - Prob. 13.5.2PE
Ch. 13.4 - Prob. 13.6.1PECh. 13.4 - Prob. 13.6.2PECh. 13.5 - Prob. 13.7.1PECh. 13.5 - Prob. 13.7.2PECh. 13.5 - Which aqueous solution will have the lowest...Ch. 13.5 - Prob. 13.8.2PECh. 13.5 - Prob. 13.9.1PECh. 13.5 - Prob. 13.9.2PECh. 13.5 - Prob. 13.10.1PECh. 13.5 - Practice Exercise 2
Camphor (C10 H16 O) melts at...Ch. 13.5 - Prob. 13.11.1PECh. 13.5 - Prob. 13.11.2PECh. 13 - Prob. 1DECh. 13 - Rank the contents of the following containers in...Ch. 13 - This figure shows the interaction of a cation with...Ch. 13 - Consider two ionic solids, both composed of singly...Ch. 13 - Which two statements about gas mixtures are true?...Ch. 13 - Prob. 5ECh. 13 - 13.6 If you compare the solubilities of the noble...Ch. 13 - Prob. 7ECh. 13 - Prob. 8ECh. 13 - Prob. 9ECh. 13 - Prob. 10ECh. 13 - Suppose you had a balloon made of some highly...Ch. 13 - Prob. 12ECh. 13 - Indicate whether each statement is true or false:...Ch. 13 - Indicate whether each statement is true or false:...Ch. 13 - Indicate the type of solute-solvent interaction...Ch. 13 - Indicate the principal type of solute-solvent...Ch. 13 - An ionic compound has a very negative H soln in...Ch. 13 - When ammonium chloride dissolves in water, the...Ch. 13 - Prob. 19ECh. 13 - Prob. 20ECh. 13 - Prob. 21ECh. 13 - KBr is relatively soluble in water, yet its...Ch. 13 - The solubility of Cr (NO3)3 . 9 H2O in water is...Ch. 13 - The solubility of MnSO4 . H2 O in water at 20 C is...Ch. 13 - Prob. 25ECh. 13 - Prob. 26ECh. 13 - Prob. 27ECh. 13 - Prob. 28ECh. 13 - Prob. 29ECh. 13 - Prob. 30ECh. 13 - Would you expect stearic acid, CH3 (CH2)16COOH, to...Ch. 13 - Prob. 32ECh. 13 - Prob. 33ECh. 13 - Prob. 34ECh. 13 - Indicate whether each statement is true or false:...Ch. 13 - 13.36 Indicate whether each statement is true or...Ch. 13 - The Henry’s law constant for helium gas in water...Ch. 13 - Prob. 38ECh. 13 - Prob. 39ECh. 13 - Prob. 40ECh. 13 - Prob. 41ECh. 13 - Prob. 42ECh. 13 - 13.43 Calculate the morality of the following...Ch. 13 - Prob. 44ECh. 13 - Calculate the molality of each of the following...Ch. 13 - (a) What is the molality of a solution formed by...Ch. 13 - Prob. 47ECh. 13 - Prob. 48ECh. 13 - Prob. 49ECh. 13 - The density of toluene (C7H8) is 0.867 g\mL, and...Ch. 13 - Calculate the number of moles of solute present in...Ch. 13 - Calculate the number of moles of solute present in...Ch. 13 - Prob. 53ECh. 13 - Describe how you would prepare each of the...Ch. 13 - Commercial aqueous nitric acid has a density of...Ch. 13 - Prob. 56ECh. 13 - Prob. 57ECh. 13 - Prob. 58ECh. 13 - Prob. 59ECh. 13 - Prob. 60ECh. 13 - Prob. 61ECh. 13 - Prob. 62ECh. 13 - Consider two solutions, one formed by adding 10 g...Ch. 13 - Prob. 64ECh. 13 - Prob. 65ECh. 13 - (a) Calculate the vapor pressure of water above a...Ch. 13 - Prob. 67ECh. 13 - At 20 oC, the vapor pressure of benzene (C6 H6) is...Ch. 13 - Prob. 69ECh. 13 - Prob. 70ECh. 13 - Prob. 71ECh. 13 - Prob. 72ECh. 13 - Using data from Table 13.3, calculate the freezing...Ch. 13 - Prob. 74ECh. 13 - Prob. 75ECh. 13 - Prob. 76ECh. 13 - Prob. 77ECh. 13 - Prob. 78ECh. 13 - Prob. 79ECh. 13 - Lauryl alcohol is obtained from coconut oil and is...Ch. 13 - Prob. 81ECh. 13 - Prob. 82ECh. 13 - The osmotic pressure of a 0.010 M aqueous solution...Ch. 13 - Based on the given data in Table 13.4, which...Ch. 13 - (a) Do colloids made only of gases exist? Why or...Ch. 13 - Prob. 86ECh. 13 - An “emulsifying agent” is a compound that helps...Ch. 13 - Aerosols are important components of the...Ch. 13 - Prob. 89ECh. 13 - Soaps consist of compounds such as sodium state,...Ch. 13 - Prob. 91AECh. 13 - Prob. 92AECh. 13 - Most fish need at least 4 ppm dissolved O2 in...Ch. 13 - The presence of the radioactive gas radon (Rn) in...Ch. 13 - Prob. 95AECh. 13 - Prob. 96AECh. 13 - The maximum allowable concentration of lead in...Ch. 13 - Prob. 98AECh. 13 - Prob. 99AECh. 13 - Prob. 100AECh. 13 - Prob. 101AECh. 13 - The normal boiling point of ethanol, is 78.4 0C....Ch. 13 - Prob. 103AECh. 13 - Carbon disulfide (CS2) boils at 46.30 o C and has...Ch. 13 - Prob. 105AECh. 13 - Prob. 106IECh. 13 - At ordinary body temperature (37 o C), the...Ch. 13 - Prob. 108IECh. 13 - Prob. 109IECh. 13 - Prob. 110IECh. 13 - Prob. 111IECh. 13 - Prob. 112IECh. 13 - At 35 o C the vapor pressure of acetone, (CH3)2CO,...Ch. 13 - Prob. 114IE
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
- The vapor pressures of several solutions of water-propanol (CH3CH2CH2OH) were determined at various compositions, with the following data collected at 45C: H2O Vapor pressure(torr) 0 74.0 0.15 77.3 0.37 80.2 0.54 81.6 0.69 80.6 0.83 78.2 1.00 71.9 a. Are solutions of water and propanol ideal? Explain. b. Predict the sign of Hsoln for water-propanol solutions. c. Are the interactive forces between propanol and water molecules weaker than, stronger than, or equal to the interactive forces between the pure substances? Explain. d. Which of the solutions in the data would have the lowest normal boiling point?arrow_forwardCarbon tetrachloride (CCl4) and benzene (C6H6) form ideal solutions. Consider an equimolar solution of CCl4 and C6H6 at 25C. The vapor above the solution is collected and condensed. Using the following data, determine the composition in mole fraction of the condensed vapor. Substance Gfo C6H6(l) 124.50 kJ/mol C6H6(g) 129.66 kJ/mol CCI4(l) 65.21 kJ/mol CCI4,(g) 60.59 kJ/molarrow_forwardThe dispersed phase of a certain colloidal dispersion consists of spheres of diameter 1.0 102 nm. (a) What are the volume (V=43r2) and surface area (A = r2) of each sphere? (b) How many spheres are required to give a total volume of 1.0 cm3? What is the total surface area of these spheres in square meters?arrow_forward
- A solution, prepared by dissolving 9.41 g NaHSO3 in 1.00 kg water, freezes at 0.33 C. From these data,decide which of these equations is the correct expressionfor the dissociation of the salt. (a) NaHSO3(aq)Na+(aq)+HSO3(aq) (b) NaHSO3(aq)Na+(aq)+H+(aq)+SO32(aq)arrow_forwardThe lattice enthalpy of sodium chloride, H for NaCl(s)Na+(g)+Cl(g) is 787 kJ/mol; the heat of solution in making up 1 M NaCl(aq) is +4.0 kJ/mol. From these data, obtain the sum of the heats of hydration of Na+ and Cl. That is obtain the sum of H values for Na+(g)Na+(aq)Cl(g)Cl(aq) If the heat of hydration of Cl is 338 kJ/mol, what is the heat of hydration of Na+?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: 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 LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher: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
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY