Question

Distinguishing chemical test between ammonium sulphate and sodium sulphate

Answer 1

1. Distinguishing test between ammonium sulphate and sodium sulphate :
If you heat ammonium sulphate with calcium oxide, smell of ammonia will come out.
(NH4)2SO4 + CaO → CaSO4 + 2NH3 +H2O
 
If  a wet glass road by HCl is hold on the evolved gas, white fumes of NH4Cl will form.
NH3 + HCl → NH4Cl
 
But sodium sulphate (Na2SO4) does not respond to above mentioned tests.
If flame test is performed with Na2SO4, a golden yellow flame will be observed.

Answer 2

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Here is your answer -

Distinguishing Chemical test between sodium sulphate and ammonium sulphate:

Add ammonium sulphate in sodium sulphate and heat. In no time, fumes of ammonia will start to emerge in the air and a distinguish smell is detected.

Ammonia has a very distinct smell hence it is easily recognized.

The chemical equation of such a solution is as follows;

NH42SO4 + 2NaOH → 2NH3 + Na2SO4+2H2O