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Chemistry: burning hydrogen produces pure water
How to prove that burning hydrogen produces pure water as “ash”. In the left-hand bottle bits of zinc are oxidised by a diluted sulphuric acid being poured in; the resulting hydrogen is collected through the second neck and exiccated in … Continued
Chemistry: lab equipment for nitrogen production
Nitrogen gas is an industrial gas produced by the fractional distillation of liquid air. Nitrogen is formally considered to have been discovered by Scottish physician Daniel Rutherford in 1772, Lavoisier referred to it as “mephitic air” or azote.
Chemistry: lab production of silicon tetrachloride SiCl4
Lab equipment for production of silicon tetrachloride : SiO2+Cl4+C2=SiCl4+2 CO. The silicon tetrachloride is condensed to colorless liquid form.
Chemistry: transition from boiling water to vapor.
Illustration from an old chemistry book. Occasionally the same happens in the kitchen as well.