Test Prep Series for AP Chemistry for Chemistry: The Central Science 14th ed AP
14th Edition
ISBN: 9780134661483
Author: Edward L Waterman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 13, Problem 90E
Soaps consist of compounds such as sodium state, CH3(CH2)16COO-Na+, that have both hydrophilic parts. Consider the hydrocarbon part of sodium stearate to be the “tail” and the charged part to be the “head.”
a. Which part of sodium stearate, head or tail, is more likely to be solvated by water?
b. Grease is a complex mixture of (mostly) hydrophobic compounds. Which part of sodium stearate, head or tail, is most likely to bind to grease?
c. If you have large deposits of grease that you want to wash away with water, you can see that adding sodium stearate will help you produce an emulsion. What intermolecular interactions are responsible for this?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Chapter 13 Solutions
Test Prep Series for AP Chemistry for Chemistry: The Central Science 14th ed AP
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
- Starch contains CC, CH, CO, and OH bonds. Hydrocarbons have only CC and CH bonds. Both starch and hydrocarbons can form colloidal dispersions in water. Which dispersion is classified as hydrophobic? Which is hydrophilic? Explain briefly.arrow_forwardA 0.109 mol/kg aqueous solution of formic acid, HCOOH, freezes at −0.210 °C. Calculate the percent dissociation of formic acid.arrow_forwardExplain why solutions of HBr in benzene (a nonpolar solvent) are nonconductive, while solutions in water (a polar solvent) are conductive.arrow_forward
- Sodium chloride (NaCl) is commonly used to melt ice on roads during the winter. Calcium chloride (CaCl2) is sometimes used for this purpose too. Let us compare the effectiveness of equal masses of these two compounds in lowering the freezing point of water, by calculating the freezing point depression of solutions containing 200. g of each salt in 1.00 kg of water. (An advantage of CaCl2 is that it acts more quickly because it is hygroscopic, that is. it absorbs moisture from the air to give a solution and begin the process. A disadvantage is that this compound is more costly.)arrow_forwardA 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_forward(a) Which aqueous solution is expected to have the higher boiling point: 0.10 m Na2SO4 or 0.15 m sugar? (b) For which aqueous solution is the vapor pressure of water higher: 0.30 m NH4NO3 or 0.15 m Na2SO4?arrow_forward
- The 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_forwardWhat 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_forwardConsider three test tubes. Tube A has pure water. Tube B has an aqueous 1.0 m solution of ethanol, C2H5OH. Tube C has an aqueous 1.0 m solution of NaCl. Which of the following statements are true? (Assume that for these solutions 1.0m=1.0M.) (a) The vapor pressure of the solvent over tube A is greater than the solvent pressure over tube B. (b) The freezing point of the solution in tube B is higher than the freezing point of the solution in tube A. (c) The freezing point of the solution in tube B is higher than the freezing point of the solution in tube C. (d) The boiling point of the solution in tube B is higher than the boiling point of the solution in tube C. (e) The osmotic pressure of the solution in tube B is greater than the osmotic pressure of the solution in tube C.arrow_forward
- Will red blood cells swell, remain the same size, or shrink when placed in each of the solutions in Problem 8-102?arrow_forwardThe following table lists the concentrations of the principal ions in seawater: (a) Calculate the freezing point of seawater. (b) Calculate the osmotic pressure of seawater at 25 C. What is the minimum pressure needed to purify seawater by reverse osmosis?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
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry: An Atoms First Approach
Chemistry
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY