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Question
Distinguish by a chemical test, ammonium sulphate and sodium sulphate.
Chemical Equations/Structures
Distinguish Between
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Solution 1
These salts can be distinguished by using KOH. When KOH is added to ammonium sulphate, ammonia gas is evolved. Whereas there is no evolution of ammonia gas in the case of sodium sulphate.
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Solution 2
Ammonium sulphate with NaOH produces NH3 ↑.
\[\ce{(NH4)2SO4 + 2NaOH ->[\Delta] Na2SO4 + 2H2O + 2NH3}\]
Meanwhile, sodium sulphate with NaOH does not produce ammonia gas.
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Electrolytes
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