What is the solubility of a salt? Explain the classification of salts based on solubility.
(N/A) The solubility of a salt is defined as the number of moles of solute that can be dissolved in $1 \ L$ of solvent at a specific temperature.
Classification of salts based on solubility:
$(i)$ Soluble salts:
- Solubility is greater than $0.1 \ M$.
- These salts exist in the form of ions in solution (complete ionization).
- Examples: $NaCl, CaCl_2, CaF_2$.
$(ii)$ Less soluble salts:
- Solubility is between $0.01 \ M$ and $0.1 \ M$.
- These salts exhibit ionic equilibrium in solution.
- Examples: $Ca(OH)_2, MgSO_4$.
$(iii)$ Sparingly soluble salts:
- Solubility is less than $0.01 \ M$.
- These salts are very slightly soluble and form insoluble precipitates in solution.
- Examples: $AgCl, Mg(OH)_2, BaSO_4$.
The solubility of salts varies with temperature.
Classification of salts based on solubility:
$(i)$ Soluble salts:
- Solubility is greater than $0.1 \ M$.
- These salts exist in the form of ions in solution (complete ionization).
- Examples: $NaCl, CaCl_2, CaF_2$.
$(ii)$ Less soluble salts:
- Solubility is between $0.01 \ M$ and $0.1 \ M$.
- These salts exhibit ionic equilibrium in solution.
- Examples: $Ca(OH)_2, MgSO_4$.
$(iii)$ Sparingly soluble salts:
- Solubility is less than $0.01 \ M$.
- These salts are very slightly soluble and form insoluble precipitates in solution.
- Examples: $AgCl, Mg(OH)_2, BaSO_4$.
The solubility of salts varies with temperature.
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