Double salts dissociate into simple ions when dissolved, whereas complex ions, like [Fe(CN)₆]⁴⁻ in K₄[Fe(CN)₆], do not dissociate into their constituent ions, maintaining their structural integrity in solution.
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Double salts dissociate into simple ions when dissolved, whereas complex ions, like [Fe(CN)₆]⁴⁻ in K₄[Fe(CN)₆], do not dissociate into their constituent ions, maintaining their structural integrity in solution.
Double salts and complex ions exhibit distinct dissociation behaviors in water. Double salts, like carnallite (KCl⋅MgCl₂⋅6H₂O), dissociate into individual ions upon dissolution, releasing potassium, magnesium, chloride, and water ions. This complete dissociation results in the formation of separate hydrated ions. On the other hand, complex ions, exemplified by [Fe(CN)₆]⁴⁻ in K₄[Fe(CN)₆], do not dissociate into their constituent ligands and metal ions. The complex remains intact, maintaining its structural integrity in solution. This behavior arises from the strong coordination bond between the metal ion and ligands, highlighting the distinction between double salts and complex ions in aqueous solutions.