L23 - Dipole-dipole forces tend to be stronger than London...

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Unformatted text preview: Dipole-dipole forces tend to be stronger than London dispersion forces for similar sized molecules. Whats so special about H 2 O? H 2 O can exhibit hydrogen- bonding . H-bonding is an unusually strong type of dipole- dipole interaction. Dipole-dipole forces tend to be stronger than London dispersion forces for similar sized molecules. THE HYDROGEN BOND a dipole-dipole intermolecular force The elements which are so electronegative are N, O, and F. A hydrogen bond may occur when an H atom in a molecule, bound to small highly electronegative atom with lone pairs of electrons, is attracted to the lone pairs in another molecule. .. F .. .. .. H O .. N .. F H .. .. .. O .. .. .. N H hydrogen bond donor hydrogen bond acceptor hydrogen bond acceptor hydrogen bond donor hydrogen bond donor hydrogen bond acceptor H-bonding between H 2 O, NH 3 and H 2 ONH 3 . The more positive H is strongly attracted to the more negative O or N. For more info see: www.aip.org/png/html/h-bond.htm Hydrogen bonding and boiling point....
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L23 - Dipole-dipole forces tend to be stronger than London...

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