Sodium sulphate is soluble in water but bariu | vedclass

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Question

(D) The solubility of an ionic compound in water depends on the balance between its lattice energy and hydration energy. For a compound to be soluble,

Vedclass · Accepted Answer

Both $(a)$ and $(b)$.

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(D) The solubility of an ionic compound in water depends on the balance between its lattice energy and hydration energy. For a compound to be soluble,the hydration energy must be greater than the lattice energy. In the case of $Na_2SO_4$,the hydration energy is greater than the lattice energy,making it soluble. In the case of $BaSO_4$,the lattice energy is significantly higher than the hydration energy due to the high charge density and strong ionic interaction between $Ba^{2+}$ and $SO_4^{2-}$ ions,making it insoluble.

Sodium sulphate is soluble in water but barium sulphate is insoluble because:

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