Free Chemistry Learning Videos
(i) carbonate (by the addition of dilute acid and subsequent use of limewater)
(ii) chloride (by reaction of an aqueous solution with nitric acid and aqueous silver nitrate)
(iii) iodide (by reaction of an aqueous solution with nitric acid and aqueous silver nitrate)
(iv) nitrate (by reduction with aluminium in aqueous sodium hydroxide to ammonia and subsequent use of moist red litmus paper)
(v) sulfate (by reaction of an aqueous solution with nitric acid and aqueous barium nitrate)
Anion Tests and Observations
Other than barium nitrate solution, what other solution could be added to test for sulfate ions?
Hint: Recall solubility table
Lead(II) nitrate solution. White precipitate of lead(II) sulfate is formed.
Pb(NO3)2 (aq) + Na2SO4 (aq) → PbSO4 (s)+ 2 NaNO3 (aq)
Other than silver nitrate solution, what other solution could be added to test for chloride ions?
Hint: Recall solubility table
Lead(II) nitrate solution. White precipitate of lead(II) chloride is formed.
Pb(NO3)2 (aq) + 2 NaCl (aq) → PbCl2 (s)+ 2 NaNO3 (aq)
Other than silver nitrate solution, what other solution could be added to test for iodide ions?
Lead(II) iodide solution. Yellow precipitate of lead(II) iodide is formed.
Pb(NO3)2 (aq) + 2 NaI (aq) → PbI2 (s)+ 2 NaNO3 (aq)
How to separate sand and copper(II) sulfate salt from its mixture
How to separate miscible liquids using Fractional Distillation
Why calcium ions do not form precipitate with aqueous ammonia
Identification of Cations using aqueous Ammonia (Flowchart available)
Identification of Cations using aqueous Sodium Hydroxide (Flowchart available)