Polarity of Molecules - Polarity of Molecules The"charge...

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Polarity of Molecules The "charge distribution" of a molecule is determined by The shape of the molecule The polarity of its bonds A Polar Molecule: The center of the overall negative charge on the molecule does not coincide with the center of overall positive charge on the molecule The molecule can be oriented such that one end has a net negative charge and the other a net positive charge, i.e. the molecule is a dipole A Nonpolar molecule Has no charges on the opposite ends of the molecule Or, has charges of the same sign on the opposite ends of the molecule Molecule is not a dipole Any diatomic molecule with a polar bond is a polar molecule (dipole) Polar molecules align themselves: in an electric field with respect to one another with respect to ions The degree of polarity of a molecule is described by its dipole moment , μ€ = Q * r where Q equals the charge on either end of the dipole r is the distance between the charges the greater the distance or the higher the charge, the greater the magnitude of the
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This note was uploaded on 11/22/2011 for the course CHEMISTRY CHM1025 taught by Professor Laurachoudry during the Fall '10 term at Broward College.

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Polarity of Molecules - Polarity of Molecules The"charge...

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