solubility rules

Question 1

solubility rules (1)

Answer 1

All compounds with group 1 metal ions (e.g. Na+
, K+) and ammonium ions (NH4
+) are soluble.

Question 2

solubility rules (2)

Answer 2

All nitrates (NO3-) and hydrogencarbonates (HCO3-)
are soluble.

Question 3

solubility rules (3)

Answer 3

All carbonates (CO32-) and phosphates (PO43-) are
insoluble except those mentioned in (1), group 1 metal ions

Question 4

solubility rules (4)

Answer 4

All hydroxides (OH-) are insoluble except those
mentioned in (1), Ba(OH)2and Ca(OH)2
(sparingly soluble). It is an aqueous solution when it is
in the form of limewater. However, when it is formed during
reactions, it exists as an insoluble compound.

Question 5

solubility rules (5)

Answer 5

All sulphates (SO42-) are soluble except CaSO4 , BaSO4 ,
PbSO4 , Ag2SO4 .

Question 6

solubility rules (6)

Answer 6

All halides (Cl-, Br-, I-, general form: X-) are soluble
except PbX2 and AgX.