Lavoisier 🧑🔬
Chemist and scientist (French).
Born on 26 August 1743.
Died on 8 May 1794 (aged 50).
He demonstrated the conservation of mass during a chemical change.
Experiment 🧪
At the beginning of the experiment
Lavoisier boils 122 g of mercury in a retort connected to a bell jar containing 0.8 L of air.
After a few days
Twelve days later, the mercury is coated with a red layer. This is mercury oxide because the mercury has oxidised. Moreover, the air volume under the bell jar has decreased by 0.14 L.
