Organic Chemistry, Books a la Carte Edition (9th Edition)
9th Edition
ISBN: 9780134160382
Author: Leroy G. Wade, Jan W. Simek
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3.42SP
In each pair of compounds, which compound has the higher boiling point? Explain your reasoning.
- a. octane or 2,2,3-trimethylpentane
- b. nonane or 2-methylheptane
- c. 2,2,5-trimethylhexane or nonane
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1,
How many signals do you expect in the H NMR spectrum for this molecule?
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.
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.
No additional Hs to color in top
molecule
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.
No additional Hs to color in bottom
molecule
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Row 2: Your answer is incorrect.
Consider this molecule:
How many H atoms are in this molecule?
22
How many different signals could be found in its 'H NMR spectrum?
12
Note: A multiplet is considered one signal.
13
How many signals would you expect to see in the
Check
O
signal(s)
X
§
'C NMR spectrum for the following compound?
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Chapter 3 Solutions
Organic Chemistry, Books a la Carte Edition (9th Edition)
Ch. 3.2 - Using the general molecular formula for alkanes:...Ch. 3.3B - Name the following alkanes and haloalkanes. When...Ch. 3.3B - Write structures for the following compounds. a....Ch. 3.3B - Provide IUPAC names for the following compounds....Ch. 3.3B - Prob. 3.5PCh. 3.3B - Prob. 3.6PCh. 3.3B - Prob. 3.7PCh. 3.3B - Draw the structures of the following compounds. a....Ch. 3.3B - Without looking at the structures, give molecular...Ch. 3.4C - Prob. 3.10P
Ch. 3.7B - Prob. 3.11PCh. 3.7C - Draw a graph similar to Figure 3-9, of the...Ch. 3.8B - Draw a graph similar to Figure 3-11, of the...Ch. 3.9 - Draw a perspective representation of the most...Ch. 3.10C - Give IUPAC names for the following compounds.Ch. 3.10C - Draw the structure and give the molecular formula...Ch. 3.11 - Which of the following cycloalkanes are capable of...Ch. 3.11 - Give IUPAC names for the following cycloalkanes.Ch. 3.12B - The heat of combustion of...Ch. 3.12C - Prob. 3.20PCh. 3.13B - The cyclohexane chair shown in Figure 3-22 has the...Ch. 3.13B - Draw 1,2,3,4,5,6-hexamethylcyclohexane with all...Ch. 3.14 - Prob. 3.23PCh. 3.14 - Prob. 3.24PCh. 3.14 - Draw the most stable conformation of a....Ch. 3.15 - Prob. 3.26PCh. 3.15 - a. Draw both chair conformations of cis-1...Ch. 3.15 - Prob. 3.28PCh. 3.15A - Draw the two chair conformations of each of the...Ch. 3.15B - Draw the most stable conformation of a....Ch. 3.16A - Name the following compounds.Ch. 3.16B - Prob. 3.32PCh. 3 - Prob. 3.33SPCh. 3 - Prob. 3.34SPCh. 3 - 3-35 a. Draw and name the five cycloalkane...Ch. 3 - Draw the structure that corresponds with each...Ch. 3 - Each of the following descriptions applies to more...Ch. 3 - Write structures for a homologous series of...Ch. 3 - Prob. 3.39SPCh. 3 - Construct a graph, similar to Figure 3-11, of the...Ch. 3 - The following names are all incorrect or...Ch. 3 - In each pair of compounds, which compound has the...Ch. 3 - There are eight different five-carbon alkyl...Ch. 3 - Use a Newman projection about the indicated bond...Ch. 3 - a. Draw the two chair conformations of...Ch. 3 - Draw the two chair conformations of each compound,...Ch. 3 - Using what you know about the conformational...Ch. 3 - Prob. 3.48SPCh. 3 - Draw Newman projections along the C3C4 bond to...Ch. 3 - Prob. 3.50SPCh. 3 - The most stable form of the common sugar glucose...Ch. 3 - This is a Newman projection of a substituted...
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- 13 Consider the "C NMR spectrum below. 140 120 100 80 60 40 20 20 PPM 0 The spectrum belongs to which one of the following constitutional isomers of the compound C,H12? Select the single best answer. Check ✓ G Save For Later 2025 McGraw Hill LLC. All Rights Reserved. Terms of Usearrow_forwardThe structure of compound 1,3,5-trimethylbenzene (mesitylene) is given below. How many signals would you expect to find in the 'H NMR spectrum of 1,3,5-trimethylbenzene (mesitylene)? Check ×arrow_forward1 How many signals do you expect in the 'H NMR spectrum for this molecule? CI CI Cl Write the answer in the table below. Also, in each of the drawing areas below is a copy of the molecule, with H atoms shown. In each copy, one of the H atoms is highlighted 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: Remember, a multiplet is considered one signal in the 'H NMR spectrum. 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. No additional H atoms to highlight in top molecule 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…arrow_forward
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