Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 7ALQ
You may have noticed that when water boils, you can see bubbles that rise to die surface of the water. Which of die following is inside these bubbles? Explain.
- a. air
- b. hydrogen and oxygen gas
- c. oxygen gas
- d. water vapor
- e. carbon dioxide gas
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Students have asked these similar questions
Wintergreen from Aspirin:
1. In isolating the salicylic acid, why is it important to press out as much of the water as possible?
2. Write the mechanism of the esterification reaction you did.
3.
What characteristic absorption band changes would you expect in the IR spectrum on going from aspirin to salicyclic acid and
then to methyl salicylate as you did in the experiment today? Give approximate wavenumbers associated with each functional
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What signals appeared/disappeared/shifted that indicate that you have your intended product and not starting material? What
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Synthesis of ZybanⓇ:
1. Write a mechanism for the bromination of m-chloropropiophenone.
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2. Give the expected m/z (to a round number) for the molecular ion from the product above (including isotopic peaks).
3. What signals appeared/disappeared/shifted that indicate that you have your intended product and not starting material? What
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Synthesis of Ibuprofen-Part 2:
1. Some pain relievers including ibuprofen (MotrinⓇ) and naproxen (Aleve®) are "α-arylpropanoic acids." Look up the structure
of naproxen (AleveⓇ), another a-arylpropionic acid. Using the same reactions that we used for making ibuprofen, show how
to make naproxen from the compound below. Show all intermediates and reagents in your synthesis.
Show how you would prepare ibuprofen starting from p-isobutylbenzene rather than p-isobutylacetophenenone. What reaction
steps would need to change/add?
3. What signals appeared/disappeared/shifted that indicate that you have your intended product and not starting material? What
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Chapter 2 Solutions
Chemistry
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