Why is the hydration energy of Al^ 3 ion greater than Mg^ 2?
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Hydration is the phenomenon where water molecules surrounds ions in solution. In case of metal cation the extent of hydration depends up two factors. 1.) Size of metal ion :- smaller the size of metal ion greater will be the hydration. read more
Sol. Hydration energy depends on charge of ion and ionic radius. Higher the charge, greater the hydration energy. On the other hand, smaller the size, greater the hydration energy. read more
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