Why AgCl is insoluble in water? Can it be explained in other ways without mentioning the high charges or sizes of the atoms ?
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Explanation:
Lesser the lattice energy and greater the hydration enthalpy, more is the solubility. ... AgCl is also not soluble in water, because the forces favouring formation of silver hydroxide are too weak to break the ionic bonds between silver and chlorine in AgCl .
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AgCl is insoluble in water due to its low hydration enthalpy and high lattice enthalpy.
- The hydration enthalpy of aq. Ag+ ions is insufficient to overcome the lattice enthalpy of silver chloride (AgCl).
- The forces holding the solid AgCl lattice together are too strong to be overcome by the forces which favour the formation of the hydrated ions, Ag+(aq) and Cl-(aq).
- Hence, AgCl does not dissolve in water.
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