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2. Notion of mole
Long after Avogadro's death, the concept of the mole emerged from experimental observations that a quantity of molecules corresponding to its molecular mass contains the same number of molecules. This number corresponds to the eponymous Avogadro number (or Avogadro constant), noted
(or L, in German-speaking countries, in reference to Loschmidt).
The quantity used by chemists to specify the amount of chemical elements or compounds is now called "amount of matter". The...
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Notion of mole
Avogadro constant: recent determinations
Bibliography
Websites
Particle data group https://pdg.lbl.gov/
Atomic Mass Data Center http://www.nndc.bnl.gov/amdc/web/amdcw_fr.html
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