Solubility of Salts
Solubility of Salts
- Solubility is the ability of a compound to dissolve in a solvent.
- Table below shows the solubility of the salts of nitrate, sulphate, chloride and carbonate.
| Salt | Solubility |
| Salt of potassium, sodium and ammonium | All soluble in water |
| Salt of nitrate | All soluble in water |
| Salt of sulphate | Mostly soluble in water except: (Pb) Lead sulphate (Ba) Barium sulphate (Ca) Calcium sulphate |
| Salt of chloride | Mostly soluble in water except: (Pb) Lead chloride (Ag) silver chloride (Hg) mercury chloride |
| Salt of carbonate | Mostly insoluble in water except: Potassium carbonate Sodium carbonate Ammonium carbonate |
Notes:
Lead halide such as lead(II) chloride (PbCl2), lead(II) bromide (PbBr2) and lead (II) iodide (PbI2) are insoluble in cold water but soluble in hot water.
Solubility of oxide and hydroxide
| Oxide and Hydroxide | Solubility |
| Oxide | Mostly insoluble in water except: K2O and Na2O. |
| Hydroxide | Mostly insoluble in water except: KOH and NaOH |