How is nitrogen prepared in the laboratory? Write the chemical equatio

1.	How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.
Answer» An aqueous solution of ammonium chloride is treated with sodium nitrite NH₄Cl + NaNO₂(aq) → N₂(g) + 2H₂O(e) + NaCl(aq) NO and HNO₃ are produced in small amounts. These are impurities that can be removed on passing nitrogen gas through aqueous H₂SO₄ containing potassium dichromate.

How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.

Answer»

An aqueous solution of ammonium chloride is treated with sodium nitrite

NH₄Cl + NaNO₂(aq) → N₂(g) + 2H₂O(e) + NaCl(aq)

NO and HNO₃ are produced in small amounts. These are impurities that can be removed on passing nitrogen gas through aqueous H₂SO₄ containing potassium dichromate.

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How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.

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