Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Choose the best explanation for why these
compounds are all less than fifteen carbons.
A) Aldehydes with longer alkyl chains
become increasingly nonpolar and the LDF
are stronger than hydrogen bonding with
ethanol.
B) Ethanol molecules will hydrogen bond
with the oxygen of the aldehydes. However,
longer alkyl chains interrupt the ability of
the aldehyde to hydrogen bond with
ethanol which decreases the solubility.
C) Ethanol molecules will form strong LDF
interactions between the alkyl chains of the
aldehydes and the alkyl groups of ethanol.
The strong attractions cause the aldehydes
to precipitate out of solution.
D) When aldehydes chain length increases,
the aldehydes have stronger intermolecular
force with the small ethanol solvent
molecules than the ethanol-ethanol
intermolecular force.
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