Subjective Type

Why is LiF almost insoluble in water whereas LiCl soluble not only in water but also in acetone?

Solution

The lattice energy of LiF is very high due to small size of $$\displaystyle Li^+$$ ions and $$\displaystyle F^- $$ ions. The hydration energy of LiF is lower than lattice energy. In case of LiCl, the hydration energy is higher than the lattice energy. Hence, LiCl is water soluble. Due to higher polarization, LiCl has some covalent character. Hence, it is soluble in non polar solvents such as acetone.

SIMILAR QUESTIONS

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s - block Elements (Alkali and Alkaline Earth Metals)

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