Question

How is an ion-dipole interaction responsible for the solubility of an ionic solid in water?

Answer 1

1. An ion-dipole interaction is responsible for the solubility of an ionic solid in water because when the solid dissolves, its ions are surrounded by water molecules, which are polar.
2. The positive ions (cations) are attracted to the negative pole (oxygen atom) of water, and the negative ions (anions) are attracted to the positive pole (hydrogen atoms).
3. These strong ion-dipole forces between the ions and water molecules overcome the ionic bonds in the solid, allowing the ions to separate and disperse uniformly throughout the solution, thereby making the ionic solid dissolve in water.