How nitrogen is prepared in the laboratory?
Dinitrogen is prepared in the laboratory by heating a solution an equivalent amount of sodium nitrite and ammonium chloride when ammonium nitrite and sodium chloride are formed. Ammonium nitrite then decomposes to nitrogen and water. NH4Cl + NaNO2 → NH4NO2 + NaCl NH4NO2 → N2 + 2H2O
