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(A true story) The manager of an organic chemistry

Organic Chemistry | 8th Edition | ISBN: 9780321768414 | Authors: L.G. Wade Jr ISBN: 9780321768414 33

Solution for problem 45SP Chapter 20

Organic Chemistry | 8th Edition

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Organic Chemistry | 8th Edition | ISBN: 9780321768414 | Authors: L.G. Wade Jr

Organic Chemistry | 8th Edition

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Problem 45SP

(A true story) The manager of an organic chemistry stockroom prepared unknowns for a "Ketones and Aldehydes" experiment by placing two drops of the liquid unknowns in test tubes and storing the test tubes for several days until they were needed. One of the unknowns was misidentified by every student. This unknown was taken from a bottle marked "Heptaldehyde." The stockroom manager took an IR spectrum of the liquid in the bottle and found a sharp carbonyl stretch around  and small, sharp peaks around 2710 and .

          The students complained that their spectra showed no peaks at 2710 or , but a broad absorption centered over the  region and a carbonyl peak around . They also maintained that their samples are soluble in dilute aqueous sodium hydroxide.

(a) Identify the compound in the stockroom manager's bottle and the compound in the students' test tubes.(b) Explain the discrepancy between the stockroom manager's spectrum and the students' results.(c) Suggest how this misunderstanding might be prevented in the future.

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Solution 45SP

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Textbook: Organic Chemistry
Edition: 8
Author: L.G. Wade Jr
ISBN: 9780321768414

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(A true story) The manager of an organic chemistry