Mole Day

Mole Day: October 23rd

October 23rd is Mole Day.

It’s an informal holiday celebrated between 6:02 am and 6:02 pm on this day.

This is derived from the Avogadro number “about 6.02×1023” that defines the number of particles in 1 mol of substance.

On May 15th, 1991, a high school teacher in the state of Wisconsin, USA, Maurice Orler, founded the “National Mole Day Foundation”.

Various activities are carried out by chemists and students around the world.

・References
NATIONAL MOLE DAY FOUNDATION INC.: What Is Mole Day?

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