Chemistry, Books a la Carte Edition and Modified Mastering Chemistry with Pearson eText & ValuePack Access Card (7th Edition)
7th Edition
ISBN: 9780134172514
Author: John E. McMurry
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 12, Problem 12.8A
APPLY 12.8 What is the molality of a solution prepared by dissolving 0.385 g of cholesterol, C27H46O, in 40.0 g of chloroform, CHCl3? What is the mole fraction of cholesterol in the solution?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NO2 (g) = N2O4(g)
AGº = -5.4 kJ
Now suppose a reaction vessel is filled with 4.53 atm of dinitrogen tetroxide (N2O4) at 279. °C. Answer the following questions about this system:
Under these conditions, will the pressure of N2O4 tend to rise or fall?
Is it possible to reverse this tendency by adding NO2?
In other words, if you said the pressure of N2O4 will tend to rise, can that
be changed to a tendency to fall by adding NO2? Similarly, if you said the
pressure of N2O4 will tend to fall, can that be changed to a tendency to
'2'
rise by adding NO2?
If you said the tendency can be reversed in the second question, calculate
the minimum pressure of NO 2 needed to reverse it.
Round your answer to 2 significant digits.
00
rise
☐ x10
fall
yes
no
☐ atm
G
Ar
1
Why do we analyse salt?
Curved arrows are used to illustrate the flow of electrons. Using
the provided starting and product structures, draw the curved
electron-pushing arrows for the following reaction or
mechanistic step(s).
Be sure to account for all bond-breaking and bond-making
steps.
H
H
CH3OH, H+
H
Select to Add Arrows
H°
0:0
'H
+
Q
HH
■ Select to Add Arrows
CH3OH,
H*
H.
H
CH3OH, H+
HH
■ Select to Add Arrows i
Please select a drawing or reagent from the question area
Chapter 12 Solutions
Chemistry, Books a la Carte Edition and Modified Mastering Chemistry with Pearson eText & ValuePack Access Card (7th Edition)
Ch. 12 - Prob. 12.1PCh. 12 - Prob. 12.2ACh. 12 - Prob. 12.3PCh. 12 - Prob. 12.4ACh. 12 - PRACTICE 12.5 A 50.0 mL sample of drinking water...Ch. 12 - APPLY 12.6 The legal limit for human exposure to...Ch. 12 - PRACTICE 12.7 What mass in grams of a 0.500 m...Ch. 12 - APPLY 12.8 What is the molality of a solution...Ch. 12 - PRACTICE 12.9 The density at 20°C of a 0.500 M...Ch. 12 - APPLY 12.10 The density at 20°C of a 0.258 m...
Ch. 12 - Prob. 12.11PCh. 12 - APPLY 12.12 Use the Henry’s law constant you...Ch. 12 - PRACTICE 12.13 What is the vapor pressure in mm Hg...Ch. 12 - APPLY 12.14 A solution made by dissolving 8.110 g...Ch. 12 - Prob. 12.15PCh. 12 - Conceptual APPLY 12.16 The following diagram shows...Ch. 12 - PRACTICE 12.17 What is the vapor pressure of the...Ch. 12 - Conceptual APPLY 12.18 The following diagram shows...Ch. 12 - Prob. 12.19PCh. 12 - APPLY 12.20 The following phase diagram shows a...Ch. 12 - Prob. 12.21PCh. 12 - APPLY 12.22 Cells in the human eye have an osmotic...Ch. 12 - PRACTICE 12.23 A solution prepared by dissolving...Ch. 12 - Prob. 12.24ACh. 12 - PROBLEM 12.25 What is the difference between a...Ch. 12 - PROBLEM 12.26 Urea has a high solubility in blood...Ch. 12 - Prob. 12.27PCh. 12 - Prob. 12.28PCh. 12 - Many people take vitamin supplements to promote...Ch. 12 - Prob. 12.30CPCh. 12 - Prob. 12.31CPCh. 12 - Prob. 12.32CPCh. 12 - Prob. 12.33CPCh. 12 - Prob. 12.34CPCh. 12 - Prob. 12.35CPCh. 12 - Prob. 12.36CPCh. 12 - Prob. 12.37CPCh. 12 - Prob. 12.38CPCh. 12 - Prob. 12.39CPCh. 12 - Prob. 12.40SPCh. 12 - 12.41 Why do ionic substances with higher lattice...Ch. 12 - Prob. 12.42SPCh. 12 - Prob. 12.43SPCh. 12 - Classify the strongest type of intermolecular...Ch. 12 - Classify the strongest type of intermolecular...Ch. 12 - Prob. 12.46SPCh. 12 - Prob. 12.47SPCh. 12 - Prob. 12.48SPCh. 12 - Prob. 12.49SPCh. 12 - Prob. 12.50SPCh. 12 - Prob. 12.51SPCh. 12 - Prob. 12.52SPCh. 12 - Prob. 12.53SPCh. 12 - Prob. 12.54SPCh. 12 - Pentyl alcohol (Problem 12.54) is miscible with...Ch. 12 - Prob. 12.56SPCh. 12 - 12.57 The dissolution of NH4ClO4(s) in water is...Ch. 12 - Prob. 12.58SPCh. 12 - Prob. 12.59SPCh. 12 - Prob. 12.60SPCh. 12 - Prob. 12.61SPCh. 12 - Prob. 12.62SPCh. 12 - Prob. 12.63SPCh. 12 - Prob. 12.64SPCh. 12 - Prob. 12.65SPCh. 12 - Prob. 12.66SPCh. 12 - Prob. 12.67SPCh. 12 - Prob. 12.68SPCh. 12 - Prob. 12.69SPCh. 12 - Prob. 12.70SPCh. 12 - Prob. 12.71SPCh. 12 - Prob. 12.72SPCh. 12 - Prob. 12.73SPCh. 12 - Prob. 12.74SPCh. 12 - Prob. 12.75SPCh. 12 - Ethylene glycol, C2H6O2, is the principal...Ch. 12 - Ethylene glycol, C2H6O2, is a colorless liquid...Ch. 12 - Prob. 12.78SPCh. 12 - Prob. 12.79SPCh. 12 - Prob. 12.80SPCh. 12 - Prob. 12.81SPCh. 12 - Prob. 12.82SPCh. 12 - Prob. 12.83SPCh. 12 - Prob. 12.84SPCh. 12 - Hydrogen sulfide, H2S, is a toxic gas responsible...Ch. 12 - Prob. 12.86SPCh. 12 - Prob. 12.87SPCh. 12 - Prob. 12.88SPCh. 12 - Prob. 12.89SPCh. 12 - Prob. 12.90SPCh. 12 - Prob. 12.91SPCh. 12 - Prob. 12.92SPCh. 12 - Prob. 12.93SPCh. 12 - Prob. 12.94SPCh. 12 - Prob. 12.95SPCh. 12 - Prob. 12.96SPCh. 12 - Prob. 12.97SPCh. 12 - Prob. 12.98SPCh. 12 - Prob. 12.99SPCh. 12 - Prob. 12.100SPCh. 12 - Prob. 12.101SPCh. 12 - Prob. 12.102SPCh. 12 - Prob. 12.103SPCh. 12 - Prob. 12.104SPCh. 12 - Prob. 12.105SPCh. 12 - Prob. 12.106SPCh. 12 - Prob. 12.107SPCh. 12 - Prob. 12.108SPCh. 12 - Prob. 12.109SPCh. 12 - Prob. 12.110SPCh. 12 - Prob. 12.111SPCh. 12 - Prob. 12.112SPCh. 12 - Prob. 12.113SPCh. 12 - Prob. 12.114SPCh. 12 - Prob. 12.115SPCh. 12 - Prob. 12.116SPCh. 12 - Prob. 12.117SPCh. 12 - Prob. 12.118SPCh. 12 - Prob. 12.119SPCh. 12 - Prob. 12.120SPCh. 12 - Prob. 12.121SPCh. 12 - Prob. 12.122SPCh. 12 - Prob. 12.123SPCh. 12 - Prob. 12.124SPCh. 12 - Prob. 12.125SPCh. 12 - Prob. 12.126SPCh. 12 - Prob. 12.127SPCh. 12 - Prob. 12.128SPCh. 12 - Prob. 12.129SPCh. 12 - Prob. 12.130CPCh. 12 - Prob. 12.131CPCh. 12 - Prob. 12.132CPCh. 12 - Prob. 12.133CPCh. 12 - Prob. 12.134CPCh. 12 - Prob. 12.135CPCh. 12 - Prob. 12.136CPCh. 12 - Prob. 12.137CPCh. 12 - Prob. 12.138CPCh. 12 - There’s actually much more in seawater than just...Ch. 12 - Prob. 12.140CPCh. 12 - Prob. 12.141CPCh. 12 - Prob. 12.142CPCh. 12 - Prob. 12.143CPCh. 12 - Prob. 12.144CPCh. 12 - What is the value of the van’t Hoff factor for KCI...Ch. 12 - Prob. 12.146CPCh. 12 - Prob. 12.147CPCh. 12 - Prob. 12.148CPCh. 12 - Prob. 12.149CPCh. 12 - Prob. 12.150CPCh. 12 - Prob. 12.151CPCh. 12 - An aqueous solution of a certain organic compound...Ch. 12 - Prob. 12.153CPCh. 12 - Prob. 12.154CPCh. 12 - Prob. 12.155CPCh. 12 - Prob. 12.156CPCh. 12 - Prob. 12.157CPCh. 12 - Prob. 12.158CPCh. 12 - Prob. 12.159CPCh. 12 - Prob. 12.160MPCh. 12 - Prob. 12.161MPCh. 12 - Prob. 12.162MPCh. 12 - Prob. 12.163MPCh. 12 - Prob. 12.164MP
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
- What are examples of analytical methods that can be used to analyse salt in tomato sauce?arrow_forwardA common alkene starting material is shown below. Predict the major product for each reaction. Use a dash or wedge bond to indicate the relative stereochemistry of substituents on asymmetric centers, where applicable. Ignore any inorganic byproducts H Šali OH H OH Select to Edit Select to Draw 1. BH3-THF 1. Hg(OAc)2, H2O =U= 2. H2O2, NaOH 2. NaBH4, NaOH + Please select a drawing or reagent from the question areaarrow_forwardWhat is the MOHR titration & AOAC method? What is it and how does it work? How can it be used to quantify salt in a sample?arrow_forward
- Predict the major products of this reaction. Cl₂ hv ? Draw only the major product or products in the drawing area below. If there's more than one major product, you can draw them in any arrangement you like. Be sure you use wedge and dash bonds if necessary, for example to distinguish between major products with different stereochemistry. If there will be no products because there will be no significant reaction, just check the box under the drawing area and leave it blank. Note for advanced students: you can ignore any products of repeated addition. Explanation Check Click and drag to start drawing a structure. 80 10 m 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility DII A F1 F2 F3 F4 F5 F6 F7 F8 EO F11arrow_forwardGiven a system with an anodic overpotential, the variation of η as a function of current density- at low fields is linear.- at higher fields, it follows Tafel's law.Calculate the range of current densities for which the overpotential has the same value when calculated for both cases (the maximum relative difference will be 5%, compared to the behavior for higher fields).arrow_forwardUsing reaction free energy to predict equilibrium composition Consider the following equilibrium: N2 (g) + 3H2 (g) = 2NH3 (g) AGº = -34. KJ Now suppose a reaction vessel is filled with 8.06 atm of nitrogen (N2) and 2.58 atm of ammonia (NH3) at 106. °C. Answer the following questions about this system: rise Under these conditions, will the pressure of N2 tend to rise or fall? ☐ x10 fall Is it possible to reverse this tendency by adding H₂? In other words, if you said the pressure of N2 will tend to rise, can that be changed to a tendency to fall by adding H2? Similarly, if you said the pressure of N will tend to fall, can that be changed to a tendency to rise by adding H₂? If you said the tendency can be reversed in the second question, calculate the minimum pressure of H₂ needed to reverse it. Round your answer to 2 significant digits. yes no ☐ atm Х ด ? olo 18 Ararrow_forward
- Four liters of an aqueous solution containing 6.98 mg of acetic acid were prepared. At 25°C, the measured conductivity was 5.89x10-3 mS cm-1. Calculate the degree of dissociation of the acid and its ionization constant.Molecular weights: O (15.999), C (12.011), H (1.008).Limiting molar ionic conductivities (λ+0 and λ-0) of Ac-(aq) and H+(aq): 40.9 and 349.8 S cm-2 mol-1.arrow_forwardDetermine the change in Gibbs energy, entropy, and enthalpy at 25°C for the battery from which the data in the table were obtained.T (°C) 15 20 25 30 35Eo (mV) 227.13 224.38 221.87 219.37 216.59Data: n = 1, F = 96485 C mol–1arrow_forwardIndicate the correct options.1. The units of the transport number are Siemens per mole.2. The Siemens and the ohm are not equivalent.3. The Van't Hoff factor is dimensionless.4. Molar conductivity does not depend on the electrolyte concentration.arrow_forward
- Ideally nonpolarizable electrodes can1. participate as reducers in reactions.2. be formed only with hydrogen.3. participate as oxidizers in reactions.4. form open and closed electrochemical systems.arrow_forwardIndicate the options for an electrified interface:1. Temperature has no influence on it.2. Not all theories that describe it include a well-defined electrical double layer.3. Under favorable conditions, its differential capacitance can be determined with the help of experimental measurements.4. A component with high electronic conductivity is involved in its formation.arrow_forwardTo describe the structure of the interface, there are theories or models that can be distinguished by:1. calculation of the charge density.2. distribution of ions in the solution.3. experimentally measured potential difference.4. external Helmoltz plane.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
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 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 & 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: 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
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
Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY