Comparing Hexane and Dimethyl ether, why does dimethyl ether have weaker intermolecular forces than hexane? Hexane is large + nonpolar, and dimethyl ether is small + polar.
Comparing Hexane and Dimethyl ether, why does dimethyl ether have weaker intermolecular forces than hexane? Hexane is large + nonpolar, and dimethyl ether is small + polar.
General, Organic, and Biological Chemistry
7th Edition
ISBN:9781285853918
Author:H. Stephen Stoker
Publisher:H. Stephen Stoker
Chapter14: Alcohols, Phenols And Ethers
Section: Chapter Questions
Problem 14.121EP
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Comparing Hexane and Dimethyl ether, why does dimethyl ether have weaker intermolecular forces than hexane?
Hexane is large + nonpolar, and dimethyl ether is small + polar.
Expert Solution
Step 1
The hexane has the stronger attractions between its molecules through London dispersion forces.
Diethyl ether contains dipole-dipole forces and London dispersion forces.
However,
Hexane is a larger, longer-chain molecule so there are more London dispersion forces between n-hexane molecule which outweighs the dipole forces in Dimethyl ether.
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