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Avogadros Number

Named for 19th century Italian scientist Amadeo Avogardro and alternatively known as the Avogadro constant or Loschmidt constant/number, Avagadro's number establishes the relative measurement of the number of molecules or atoms (molecular weight of a substance) per gram.

The constant used to calculate this measurement is based upon the number of carbon-12 atoms in 12 grams (unbound carbon-12 in its ground state) is currently estimated to be:

6.02257 X 10^23

The Avogadro constant can be used to calculate the molecular weight in grams for any substance [n] expressed in moles, and is used primarily in chemistry.

Web Resources On Avogadros Number

The Mol and Avogadro's Number
Avogadro's Number

Book Resources On Avogadros Number

Big Numbers by John Gribbin and Mary Gribbin
The Periodic Table: Its Story and Its Significance by Eric R. Scerri

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