Positive and Negative Ions Can Stick Together Ion-Pair Formation

Positive and Negative ions Can Stick Together Ion-Pair Formation 

The ions of the pair together form an ionic dipole on which the net charge is zero. Within the ionic cloud, the locations of such uncharged ion pairs are completely random, since, being uncharged, they are not acted upon by the Coulombic field of the central ion. Furthermore, on the average, a certain fraction of the ions in the electrolytic solution will be stuck together in the form of ion pairs. This fraction will now be evaluated. 

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