CHEMISTRY: CENTRAL SCIENCE W/ACCESS >I
3rd Edition
ISBN: 9781269917995
Author: Brown
Publisher: PEARSON C
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Textbook Question
Chapter 2, Problem 14E
At 20 oC, the vapor pressure of benzene (C6 H6) is 75 torr, and that of toluene (C7 H8) is 22 torr. Assume that benzene and toluene form an ideal solution. (a) What is the composition in mole fraction of a solution that has a vapor pressure of 35 torr at 20 oC? (b) What is the mole fraction of benzene in the vapor above the solution described in part (a)?
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CHEMISTRY: CENTRAL SCIENCE W/ACCESS >I
Ch. 2.3 - Prob. 2.1.1PECh. 2.3 - Prob. 2.1.2PECh. 2.3 - Prob. 2.2.1PECh. 2.3 - Prob. 2.2.2PECh. 2.3 - Prob. 2.3.1PECh. 2.3 - Prob. 2.3.2PECh. 2.4 - Practice Exercise 1 The atomic weight of copper,...Ch. 2.4 - Prob. 2.4.2PECh. 2.5 - Prob. 2.5.1PECh. 2.5 - Prob. 2.5.2PE
Ch. 2.6 - 11.93 The vapor pressure of ethanol (C2H5OH) at 19...Ch. 2.6 - Prob. 2.6.2PECh. 2.7 - Prob. 2.7.1PECh. 2.7 - Prob. 2.7.2PECh. 2.7 - Prob. 2.8.1PECh. 2.7 - Consider the two-dimensional square lattice of...Ch. 2.7 - Prob. 2.9.1PECh. 2.7 - Given the ionic radii and molar masses of Sc3+...Ch. 2.7 - Prob. 2.10.1PECh. 2.7 - Prob. 2.10.2PECh. 2.8 - Prob. 2.11.1PECh. 2.8 - Prob. 2.11.2PECh. 2.8 - Prob. 2.12.1PECh. 2.8 - Prob. 2.12.2PECh. 2.8 - Prob. 2.13.1PECh. 2.8 - The table below shows the normal boiling points of...Ch. 2.8 - Prob. 2.14.1PECh. 2.8 - Prob. 2.14.2PECh. 2.9 - Prob. 2.15.1PECh. 2.9 - Prob. 2.15.2PECh. 2 - Prob. 1ECh. 2 - At 280C, raw milk sours in 4.0 h but takes 48 h to...Ch. 2 - At 900 o C, Kc = 0.0108 for the reaction CaCO3(g) ...Ch. 2 - Calculate the molar concentration of OH- in a...Ch. 2 - Pyridinium bromide (C5H5NHBr) is a strong...Ch. 2 - Prob. 6ECh. 2 - Prob. 7ECh. 2 - Prob. 8ECh. 2 - Prob. 9ECh. 2 - Indicate whether each statement is true or false:...Ch. 2 - Prob. 11ECh. 2 - Prob. 12ECh. 2 - Prob. 13ECh. 2 - At 20 oC, the vapor pressure of benzene (C6 H6) is...Ch. 2 - Summarize the evidence used by J. J. Thomson to...Ch. 2 - Prob. 16ECh. 2 - Prob. 17ECh. 2 - Prob. 18ECh. 2 - Suppose the rate law for the reaction in this...Ch. 2 - Practice Exercise 1 Using the data in Sample...Ch. 2 - Which of the following linear plots do you expect...Ch. 2 - A flask is charged with 0.100 mol of A and allowed...Ch. 2 - Prob. 23ECh. 2 - Prob. 24ECh. 2 - Prob. 25ECh. 2 - Prob. 26ECh. 2 - The addition of No accelerates the decomposition...Ch. 2 - Prob. 28ECh. 2 - Prob. 29ECh. 2 - The rates of many atmospheric reactions are...Ch. 2 - Prob. 31ECh. 2 - Prob. 32ECh. 2 - Prob. 33ECh. 2 - 15.23 The equilibrium constant for the...Ch. 2 - A mixture of 0.10 mol of NO, 0.050 mol of H2, and...Ch. 2 - Prob. 36ECh. 2 - Prob. 37ECh. 2 - Prob. 38ECh. 2 - Prob. 39ECh. 2 - Prob. 40ECh. 2 - Practice Exercise 1 Order the following three...Ch. 2 - Practice Exercise 1 What is the pH of a 0.28 M...Ch. 2 - Prob. 43ECh. 2 - Which of the following diagrams best represent an...Ch. 2 - Prob. 45ECh. 2 - Prob. 46ECh. 2 - Prob. 47ECh. 2 - Prob. 48ECh. 2 - Prob. 49ECh. 2 - 16.72 Calculate the molar concentration of OH- in...Ch. 2 - Prob. 51ECh. 2 - Prob. 52ECh. 2 - Prob. 53ECh. 2 - Prob. 54ECh. 2 - a. Given that Ka for acetic acid is 1.8 10-5 and...Ch. 2 - 16.78
a. Given that Kb for ammonia is 1.8 X 10 -5...Ch. 2 - Prob. 57ECh. 2 - Prob. 58ECh. 2 - Prob. 59ECh. 2 - Prob. 60ECh. 2 - Prob. 61ECh. 2 - Prob. 62ECh. 2 - 16.86 An unknown salt is either KBr, NH4 C1, KCN,...Ch. 2 - Prob. 64ECh. 2 - Prob. 65ECh. 2 - 16.89 Based on their compositions and structures...Ch. 2 - Prob. 67ECh. 2 - 16.91 Indicate whether each of the following...Ch. 2 - Prob. 69ECh. 2 - Prob. 70ECh. 2 - Prob. 71ECh. 2 - Prob. 72ECh. 2 - Prob. 73ECh. 2 - Prob. 74ECh. 2 - Prob. 75ECh. 2 - Prob. 76ECh. 2 - Prob. 77ECh. 2 - Prob. 78ECh. 2 - Prob. 79ECh. 2 - Benzoic acid (C6H5COOH) and aniline (C6H5NH2) are...Ch. 2 - Prob. 81ECh. 2 - Prob. 82ECh. 2 - Prob. 83ECh. 2 - Butyric acid is responsible for the foul smell of...Ch. 2 - Prob. 85ECh. 2 - Prob. 86ECh. 2 - Prob. 87AECh. 2 - 1S.113 Many moderately large organic molecules...Ch. 2 - Prob. 89AECh. 2 - Prob. 90AECh. 2 - Prob. 91AECh. 2 - Prob. 92AECh. 2 - Prob. 93AECh. 2 - 16.120 At 50 oC, the ion-product constant for H2...Ch. 2 - Prob. 95AECh. 2 - Prob. 96AECh. 2 - Prob. 97AECh. 2 - Prob. 98AECh. 2 - Prob. 99AECh. 2 - Which two statements about gas mixtures are true?...Ch. 2 - Prob. 101AECh. 2 - 13.6 If you compare the solubilities of the noble...Ch. 2 - Prob. 103AECh. 2 - Prob. 104AECh. 2 - Suppose you had a balloon made of some highly...Ch. 2 - Prob. 106AECh. 2 - Indicate whether each statement is true or false:...Ch. 2 - Indicate the type of solute-solvent interaction...Ch. 2 - An ionic compound has a very negative H soln in...Ch. 2 - Prob. 110AECh. 2 - Prob. 111AECh. 2 - The solubility of Cr (NO3)3 . 9 H2O in water is...
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- 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_forwardThe organic salt [(C4H9)4N][ClO4] consists of the ions (C4H9)4N+ and ClO4. The salt dissolves in chloroform. What mass (in grams) of the salt must have been dissolved if the boiling point of a solution of the salt in 25.0 g chloroform is 63.20 C? The normal boiling point of chloroform is 61.70 C and Kb = 3.63 C kg mol1. Assume that the salt dissociates completely into its ions in 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_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