Physical Science of Water
Amadeo Avogadro is responsible for some of the most important advances in our understanding of the structure and behaviors of gases. However, among most of us he is best known for the number that bears his name. Avogadro’s number (6.02 x 1023), is the number of atoms in 12 grams of pure carbon. The number, of course, is called the mole.
You might be surprised to know that Avogadro never calculated Avogadro’s number. The principles that Avogadro demonstrated or suggested helped advance the theory that explains atoms and molecules, and made the concept of the mole possible.
- From a drawing by C. Sentier, executed in Torino at Litografia Doyen in 1856. Edgar Fahs Smith collection. Retrieved 04-14-2014.
- Avogadro, A. Essay on a Manner of Determining the Relative Masses of the Elementary Molecules of Bodies, and the Proportions in Which They Enter into These Compounds. Journal de Physique 73, 58-76 (1811).
- Morselli, M. 1984. Amedeo Avogadro, a Scientific Biography. D. Reidel Pub. Co.
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