electrostatic property of a molecule
In chemistry, polarity refers to a separation of electric charge leading to a molecule or its chemical groups having an electric dipole or multipole moment.
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- Just as individual bonds are often polar, molecules as a whole are often polar also. Molecular polarity results from the vector summation of all individual bond polarities and lone-pair contributions in the molecule. As a practical matter, strongly polar substances are often soluble in polar solvents like water, whereas less polar substances are insoluble in water.
- John McMurry, Organic Chemistry 8th ed. (2012), Ch. 2 : Polar Covalent Bonds; Acids and Bases