Chemistry, asked by areebaaftab242003, 1 day ago

The hydration energies of the ions are in the following order Al3+ > Mg2+ > Nat. Justify.

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Answered by WintaeBearTATA

The hydration enthalpies (ie, energies of hydration) of metal ions decreases with increase in ionic radii. Because of the smaller size of Al³+ than Mg2+ and Na+, its energy of hydration larger than both these ions. The order of heat of hydration is Al³+ > Mg²+ > Nat

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