Solubility of Salts, Oxide and Hydroxide

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Solubility of Salts

Solubility of Salts

  1. Solubility is the ability of a compound to dissolve in a solvent.
  2. Table below shows the solubility of the salts of nitrate, sulphate, chloride and carbonate.
SaltSolubility
Salt of potassium, sodium and ammoniumAll soluble in water
Salt of nitrateAll soluble in water
Salt of sulphateMostly soluble in water except:
(Pb) Lead sulphate
(Ba) Barium sulphate
(Ca) Calcium sulphate
Salt of chlorideMostly soluble in water except:
(Pb) Lead chloride
(Ag) silver chloride
(Hg) mercury chloride
Salt of carbonateMostly 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 HydroxideSolubility
OxideMostly insoluble in water except: K2O and Na2O.
HydroxideMostly insoluble in water except: KOH and NaOH