Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Textbook Question
Chapter 14, Problem 14.27P
Following is the mass spectrum of an unknown compound. The two highest peaks are at m/z 120 and 122. Suggest a structure for this compound. (Data from http://webbook.nist.gov/chemistry/.)
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hybridization of nitrogen of complex molecules
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?
Chapter 14 Solutions
Organic Chemistry
Ch. 14.2 - Calculate the nominal mass of each ion. Unless...Ch. 14.3 - Propose a structural formula for the cation at m/z...Ch. 14.3 - The low-resolution mass spectrum of 2-pentanol...Ch. 14 - Draw acceptable Lewis structures for the molecular...Ch. 14 - The molecular ion for compounds containing only C,...Ch. 14 - For which compounds containing a heteroatom (an...Ch. 14 - The so-called nitrogen rule states that if a...Ch. 14 - Prob. 14.8PCh. 14 - Prob. 14.9PCh. 14 - Prob. 14.10P
Ch. 14 - Determine the probability of the following in a...Ch. 14 - The molecular ions of both C5H10S and C6H14O...Ch. 14 - Prob. 14.13PCh. 14 - Carboxylic acids often give a strong fragment ion...Ch. 14 - For primary amines with no branching on the carbon...Ch. 14 - Prob. 14.16PCh. 14 - A characteristic peak in the mass spectrum of most...Ch. 14 - Predict the relative intensities of the M and M +...Ch. 14 - The mass spectrum of compound A shows the...Ch. 14 - The mass spectrum of compound B, a colorless...Ch. 14 - Write molecular formulas for the five possible...Ch. 14 - Write molecular formulas for the five possible...Ch. 14 - The molecular ion in the mass spectrum of...Ch. 14 - Prob. 14.24PCh. 14 - Following is the mass spectrum of 1-bromobutane....Ch. 14 - Following is the mass spectrum of...Ch. 14 - Following is the mass spectrum of an unknown...Ch. 14 - Following is the mass spectrum of...Ch. 14 - Prob. 14.29PCh. 14 - Following are mass spectra for the constitutional...Ch. 14 - 2-Methylpentanal and 4-methyl-2-pentanone are...Ch. 14 - Prob. 14.32PCh. 14 - Account for the presence of the following peaks in...Ch. 14 - All methyl esters of long-chain aliphatic acids...Ch. 14 - Propylbenzene, C6H5CH2CH2CH3, and isopropyl...Ch. 14 - Account for the formation of the base peaks in...Ch. 14 - Prob. 14.37PCh. 14 - Prob. 14.38P
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