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The molecule C2H5OC2H5 (diethyl ether) has a slightly higher melting point than C4H9OH. Since both molecules have the same number of atoms, the reason must be behind the shape of diethyl ether but I am not sure exactly why. Can someone explain?
Hi Jordi, by C4H9OH do you mean 1-butanol? Because the molecule with the lewis structure you're describing, a straight chain with an OH at the end, actually has a higher melting point than diethyl ether does (at least according to google), which makes sense because diethyl ether is a nonpolar chain molecule whereas 1-butanol is a polar chain, and the polarity leads to dipole-dipole interactions that hold the 1-butanol molecules closer together and raise their melting point.
Last edited by Marc Lubman 3B on Wed Nov 11, 2020 2:29 pm, edited 1 time in total.
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