Preparation of ammonia
The seeds of sodium hydroxide in a flask with a side outlet (just twice pierced stopper with glass tube) přikapáváme of separating funnel 30% ammonium chloride solution. The emerging ammonia is purified by introducing the solution conc. sodium hydroxide solution and then to a drying tube with solid sodium hydroxide.
NH4Cl + NaOH --> NH3(g) + H2O + NaCl