Question

In Kjeldahls method, ammonium sulphate when
distilled with excess of sodium hydroxide solution
yields -
ON2
gas
O NO2
gas
NH3
UN
ano
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Answer 1

Explanation:

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Answer 2

Answer:

• The Kjeldahl method is an analytical chemistry procedure that was invented in 1883 by a Danish chemist, Johan G.C.T. Kjeldahl, for estimating the nitrogen content of foodstuffs, fertilisers, and other substances.
• The method entails converting all nitrogen in a weighed sample to ammonium sulphate via sulfuric acid digestion, alkalizing the solution.
• Then determining the resulting ammonia via distillation into a measured volume of standard acid, the excess of which is determined via titration.
• 2NH₃+2H₂SO₄→(NH₄)₂SO₄+H₂SO₄

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