Question

The hydration energy of alkaline earth metal ions is higher than that of alkali metal ions.So MgCl_(2)xH_(2)O&CaCl_(2)*xH_(2)O can exist.What is the value of ^(@)x'?​

Answer 1

Answer:

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Explanation:

As hydration energy is inversely proportional to cation size and as we move down the group, size increases so the heat of hydration decreases.

Also as the size of alkaline earth metal is smaller than alkali metals so their hydration energy is lower than alkaline earth metals.

Alkaline earth metal ions, because of their much larger charge to size ratio exert a much stronger electrostatic attraction on the oxygen of water molecule surrounding them.