Organic Chemistry
8th Edition
ISBN: 9781337516402
Author: Brown
Publisher: Cengage
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Chapter 8.7, Problem DQ
The strength of the H─O bond in vitamin E is weaker than the C─H from which the hydrogen is abstracted in the fatty acid primarily because,
- 1. O─H bonds are always weaker than C─H bonds.
- 2. The radical created from hydrogen abstraction from O─H is stabilized by resonance delocalization and many of the contributing structures have secondary carbon radical character.
- 3. The sp2 hybridization of the phenyl ring changes the hybridization of the oxygen in the O─H bond.
- 4. The radical created from hydrogen abstraction from O─H is stabilized by resonance delocalization and many of the contributing structures have tertiary carbon radical character.
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Study this 'H NMR spectrum, and then answer the questions about it in the table below.
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1.0-
0.5-
0.0
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
What unit symbol should be written on the horizontal axis?
What is the chemical shift & of the doublet?
If there is no doublet, just check the box instead.
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8 = ☐
There is no doublet.
8 = ☐
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8 = 0
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how many moles of H2O2 are required to react with 11g of N2H4 according to the following reaction? (atomic weights: N=14.01, H=1.008, O= 16.00) 7H2O2 + N2H4 -> 2HNO3 + 8H20
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Chapter 8 Solutions
Organic Chemistry
Ch. 8.2 - Prob. 8.1PCh. 8.4 - Name and draw structural formulas for all...Ch. 8.4 - Using the table of bond dissociation enthalpies in...Ch. 8.5 - Prob. 8.4PCh. 8.6 - Given the solution to Example 8.5, predict the...Ch. 8.7 - Prob. 8.6PCh. 8.7 - Linoleic acid is shown below. What makes this...Ch. 8.7 - Prob. BQCh. 8.7 - Prob. CQCh. 8.7 - The strength of the HO bond in vitamin E is weaker...
Ch. 8.7 - Prob. EQCh. 8.8 - Prob. 8.7PCh. 8 - Prob. 8.8PCh. 8 - Prob. 8.9PCh. 8 - Prob. 8.10PCh. 8 - Prob. 8.11PCh. 8 - Account for the fact that among the chlorinated...Ch. 8 - Name and draw structural formulas for all possible...Ch. 8 - Prob. 8.14PCh. 8 - There are three constitutional isomers with the...Ch. 8 - Following is a balanced equation for bromination...Ch. 8 - Prob. 8.17PCh. 8 - Prob. 8.18PCh. 8 - Prob. 8.19PCh. 8 - Cyclobutane reacts with bromine to give...Ch. 8 - Prob. 8.21PCh. 8 - Following is a balanced equation for the allylic...Ch. 8 - Prob. 8.23PCh. 8 - Prob. 8.24PCh. 8 - The major product formed when methylenecyclohexane...Ch. 8 - Prob. 8.26PCh. 8 - Prob. 8.27PCh. 8 - Prob. 8.28PCh. 8 - Write the products of the following sequences of...Ch. 8 - Using your reaction roadmap as a guide, show...Ch. 8 - Prob. 8.31PCh. 8 - Prob. 8.32PCh. 8 - Prob. 8.33PCh. 8 - Prob. 8.34P
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