The Preparation of Nitrogen Monoxide and its Reaction with Oxygen
In this classic demonstration, from the Royal Society of Chemistry, nitrogen monoxide is prepared by reacting iron (II) sulphate with sodium nitrate in acidic solution, reacting the nitrogen monoxide produced with oxygen produces brown nitrogen dioxide. This experiment can be carried out using equal volumes of nitrogen monoxide and oxygen to demonstrate equilibria.
The resource provides a list of apparatus and chemicals needed for the experiment, together with teaching tips.
Curriculum links include: oxides of nitrogen, equilibria, reacting volumes of gases, Gay-Lussac’s law.