National Mole Day

A day on which we hope to encourage interest in chemistry.  National Mole Day recognizes a special number in chemistry. Chemists and chemistry students mark the occasion each year on October 23. 

A day on which we hope to encourage interest in chemistry. 

National Mole Day recognizes a special number in chemistry.

Chemists and chemistry students mark the occasion each year on October 23. 

  • A mole is a unit of measurement used in chemistry to express amounts of a chemical substance.
  • Avogadro’s number is a historical term closely related to the Avogadro constant.
  • The Avogadro constant is named after the early 19th-century Italian scientist Amedeo Avogadro.
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