Chemistry: The Molecular Science
5th Edition
ISBN: 9781285199047
Author: John W. Moore, Conrad L. Stanitski
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 16, Problem 92QRT
The standard molar entropy of methanol vapor, CH3OH(g), is 239.8 J K−1 mol-1.
- (a) Calculate the entropy change for the vaporization of 1 mol methanol (use data from Table 16.1 or Appendix J).
- (b) Calculate the enthalpy of vaporization of methanol, assuming that ΔrS° doesn’t depend on temperature and taking the boiling point of methanol to be 64.6°C.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
>
each pair of substrates below, choose the one that will react faster in a substitution reaction, assuming that:
1. the rate of substitution doesn't depend on nucleophile concentration and
2. the products are a roughly 50/50 mixture of enantiomers.
Substrate A
Substrate B
Faster Rate
X
Ś
CI
(Choose one)
(Choose one)
CI
Br
Explanation
Check
Br
(Choose one)
© 2025 McGraw Hill LLC. All Rights F
NMR spectrum of ethyl acetate has signals whose chemical shifts are indicated below. Which hydrogen or set of hydrogens corresponds to the signal at
4.1 ppm? Select the single best answer.
The
H
O
HỌC—C—0—CH, CH,
2
A
ethyl acetate
H NMR: 1.3 ppm, 2.0 ppm, 4.1 ppm
Check
OA
B
OC
ch
B
C
Save For Later
Submit Ass
© 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center |
How many signals do you expect in the H NMR spectrum for this molecule?
Br Br
Write the answer below.
Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H
atoms that would contribute to the same signal as the H already highlighted red
Note for advanced students: In this question, any multiplet is counted as one signal.
1
Number of signals in the 'H NMR spectrum.
For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to
the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
Check
For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute
to the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
O
✓
No additional Hs to color in top
molecule
ง
No additional Hs to color in bottom…
Chapter 16 Solutions
Chemistry: The Molecular Science
Ch. 16.1 - Write a chemical equation for each process and...Ch. 16.2 - Prob. 16.2CECh. 16.3 - A chemical reaction transfers 30.8 kJ to a thermal...Ch. 16.3 - Prob. 16.3CECh. 16.3 - Prob. 16.2PSPCh. 16.3 - For each process, predict whether entropy...Ch. 16.4 - Calculate the entropy change for each of these...Ch. 16.5 - The reaction of carbon monoxide with hydrogen to...Ch. 16.5 - Prob. 16.4PSPCh. 16.5 - Prob. 16.6CE
Ch. 16.5 - Prob. 16.8ECh. 16.6 - Prob. 16.9CECh. 16.6 - In the text we concluded that the reaction to...Ch. 16.6 - Prob. 16.10CECh. 16.6 - Prob. 16.6PSPCh. 16.7 - Prob. 16.7PSPCh. 16.7 - Prob. 16.8PSPCh. 16.7 - Prob. 16.9PSPCh. 16.8 - Predict whether each reaction is reactant-favored...Ch. 16.9 - Prob. 16.13ECh. 16.9 - Prob. 16.11PSPCh. 16.9 - Prob. 16.12PSPCh. 16.9 - Prob. 16.14ECh. 16.11 - All of these substances are stable with respect to...Ch. 16 - Define the terms product-favored System and...Ch. 16 - What are the two ways that a final chemical state...Ch. 16 - Define the term entropy, and give an example of a...Ch. 16 - Prob. 4QRTCh. 16 - Prob. 5QRTCh. 16 - Prob. 6QRTCh. 16 - Prob. 7QRTCh. 16 - Prob. 8QRTCh. 16 - Prob. 9QRTCh. 16 - Prob. 10QRTCh. 16 - Prob. 11QRTCh. 16 - Prob. 12QRTCh. 16 - Prob. 13QRTCh. 16 - Prob. 14QRTCh. 16 - Prob. 15QRTCh. 16 - Prob. 16QRTCh. 16 - Prob. 17QRTCh. 16 - Suppose you have four identical molecules labeled...Ch. 16 - For each process, tell whether the entropy change...Ch. 16 - Prob. 20QRTCh. 16 - For each situation described in Question 13,...Ch. 16 - Prob. 22QRTCh. 16 - Prob. 23QRTCh. 16 - Prob. 24QRTCh. 16 - Prob. 25QRTCh. 16 - Prob. 26QRTCh. 16 - Prob. 27QRTCh. 16 - Prob. 28QRTCh. 16 - Prob. 29QRTCh. 16 - Prob. 30QRTCh. 16 - Prob. 31QRTCh. 16 - Diethyl ether, (C2H5)2O, was once used as an...Ch. 16 - Calculate rS for each substance when the quantity...Ch. 16 - Prob. 34QRTCh. 16 - Prob. 35QRTCh. 16 - Check your predictions in Question 28 by...Ch. 16 - Prob. 37QRTCh. 16 - Prob. 38QRTCh. 16 - Prob. 39QRTCh. 16 - Prob. 40QRTCh. 16 - Prob. 41QRTCh. 16 - Prob. 42QRTCh. 16 - Prob. 43QRTCh. 16 - Prob. 44QRTCh. 16 - Prob. 45QRTCh. 16 - Prob. 46QRTCh. 16 - Hydrogen bums in air with considerable heat...Ch. 16 - Prob. 48QRTCh. 16 - Prob. 49QRTCh. 16 - Prob. 50QRTCh. 16 - Prob. 51QRTCh. 16 - The reaction of magnesium with water can be used...Ch. 16 - Prob. 53QRTCh. 16 - Prob. 54QRTCh. 16 - Prob. 55QRTCh. 16 - Prob. 56QRTCh. 16 - Prob. 57QRTCh. 16 - Prob. 58QRTCh. 16 - Prob. 59QRTCh. 16 - Prob. 60QRTCh. 16 - Prob. 61QRTCh. 16 - Estimate ΔrG° at 2000. K for each reaction in...Ch. 16 - Prob. 63QRTCh. 16 - Some metal oxides, such as lead(II) oxide, can be...Ch. 16 - Prob. 65QRTCh. 16 - Prob. 66QRTCh. 16 - Use data from Appendix J to obtain the equilibrium...Ch. 16 - Prob. 68QRTCh. 16 - Prob. 69QRTCh. 16 - Use the data in Appendix J to calculate rG andKPat...Ch. 16 - Prob. 71QRTCh. 16 - Prob. 72QRTCh. 16 - Prob. 73QRTCh. 16 - Prob. 74QRTCh. 16 - Prob. 75QRTCh. 16 - Prob. 76QRTCh. 16 - Prob. 77QRTCh. 16 - Prob. 78QRTCh. 16 - Prob. 79QRTCh. 16 - The molecular structure shown is of one form of...Ch. 16 - Another step in the metabolism of glucose, which...Ch. 16 - In muscle cells under the condition of vigorous...Ch. 16 - The biological oxidation of ethanol, C2H5OH, is...Ch. 16 - Prob. 86QRTCh. 16 - For one day, keep a log of all the activities you...Ch. 16 - Billions of pounds of acetic acid are made each...Ch. 16 - Determine the standard Gibbs free energy change,...Ch. 16 - There are millions of organic compounds known, and...Ch. 16 - Actually, the carbon in CO2(g) is...Ch. 16 - The standard molar entropy of methanol vapor,...Ch. 16 - The standard molar entropy of iodine vapor, I2(g),...Ch. 16 - Prob. 94QRTCh. 16 - Prob. 96QRTCh. 16 - Prob. 97QRTCh. 16 - Prob. 98QRTCh. 16 - Prob. 99QRTCh. 16 - Prob. 100QRTCh. 16 - Appendix J lists standard molar entropies S, not...Ch. 16 - When calculating rSfromSvalues, it is necessary to...Ch. 16 - Prob. 103QRTCh. 16 - Explain how the entropy of the universe increases...Ch. 16 - Prob. 105QRTCh. 16 - Prob. 106QRTCh. 16 - Prob. 107QRTCh. 16 - Prob. 108QRTCh. 16 - Prob. 109QRTCh. 16 - Reword the statement in Question 109 so that it is...Ch. 16 - Prob. 111QRTCh. 16 - Prob. 112QRTCh. 16 - Prob. 113QRTCh. 16 - Prob. 114QRTCh. 16 - Prob. 115QRTCh. 16 - Prob. 116QRTCh. 16 - From data in Appendix J, estimate (a) the boiling...Ch. 16 - Prob. 118QRTCh. 16 - Prob. 119QRTCh. 16 - Prob. 120QRTCh. 16 - Prob. 121QRTCh. 16 - Prob. 122QRTCh. 16 - Prob. 123QRTCh. 16 - Prob. 124QRTCh. 16 - Prob. 125QRTCh. 16 - Prob. 126QRTCh. 16 - The standard equilibrium constant is 2.1109for...Ch. 16 - Prob. 16.ACPCh. 16 - Prob. 16.CCPCh. 16 - Prob. 16.DCPCh. 16 - Consider planet Earth as a thermodynamic system....
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
- in the kinetics experiment, what were the values calculated? Select all that apply.a) equilibrium constantb) pHc) order of reactiond) rate contstantarrow_forwardtrue or false, given that a 20.00 mL sample of NaOH took 24.15 mL of 0.141 M HCI to reach the endpoint in a titration, the concentration of the NaOH is 1.17 M.arrow_forwardin the bromothymol blue experiment, pKa was measured. A closely related compound has a Ka of 2.10 x 10-5. What is the pKa?a) 7.1b) 4.7c) 2.0arrow_forward
- calculate the equilibrium concentration of H2 given that K= 0.017 at a constant temperature for this reaction. The inital concentration of HBr is 0.050 M.2HBr(g) ↔ H2(g) + Br2(g)a) 4.48 x 10-2 M b) 5.17 x 10-3 Mc) 1.03 x 10-2 Md) 1.70 x 10-2 Marrow_forwardtrue or falsegiven these two equilibria with their equilibrium constants:H2(g) + CI2(l) ↔ 2HCI(g) K= 0.006 CI2(l) ↔ CI2(g) K= 0.30The equilibrium contstant for the following reaction is 1.8H2(g) + CI2 ↔ 2HCI(g)arrow_forwardI2(g) + CI2(g) ↔ 2ICIK for this reaction is 81.9. Find the equilibrium concentration of I2 if the inital concentration of I2 and CI2 are 0.010 Marrow_forward
- true or false,the equilibrium constant for this reaction is 0.50.PCI5(g) ↔ PCI3(g) + CI2(g)Based on the above, the equilibrium constant for the following reaction is 0.25.2PCI5(g) ↔. 2PCI3(g) + 2CI2(g)arrow_forwardtrue or false, using the following equilibrium, if carbon dioxide is added the equilibrium will shift toward the productsC(s) + CO2(g) ↔ 2CO(g)arrow_forward2S2O2/3- (aq) + I2 (aq) ---> S4O2/6- (aq) +2I- (aq) Experiment I2 (M) S2O3- (M) Initital Rate (M/s) 1 0.01 0.01 0.0004 2 0.01 0.02 0.0004 3 0.02 0.01 0.0008 Calculate the overall order for this reaction using the table data a) 3b) 0c) 2d) 1arrow_forward
- the decomposition of N2O5 is the first order with a half-life of 1.98 minutes. If the inital concentration of N2O5 is 0.200 M, what is the concentration after 6 minutes?a) 0.612 Mb) 0.035 Mc) 0.024 Md) 0.100 Marrow_forward20.00 mL of 0.150 M HCI is titrated with 0.075 M NaOH. What volume of NaOH is needed?a) 50 mLb) 20 mLc) 40 mLd) 26.66 mLarrow_forward20.00 mL of 0.150 M NaOH is titrated with 37.75 mL of HCI. What is the molarity of the HCI?a) 0.150 Mb) 0.079 Mc) 0.025 Md) 0.050 Marrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
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: 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
Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher: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: 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
Chemistry: Matter and Change
Chemistry
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Glencoe/McGraw-Hill School Pub Co
Principles of Modern Chemistry
Chemistry
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
The Laws of Thermodynamics, Entropy, and Gibbs Free Energy; Author: Professor Dave Explains;https://www.youtube.com/watch?v=8N1BxHgsoOw;License: Standard YouTube License, CC-BY