Mole Day Is Coming!!!

What is Mole Day?

Celebrated annually on October 23 from 6:02 a.m. to 6:02 p.m., Mole Day commemorates Avogadro's Number (6.02 x 10^23), which is a basic measuring unit in chemistry. Mole Day was created as a way to foster interest in chemistry. Schools throughout the United States and around the world celebrate Mole Day with various activities related to chemistry and/or moles.

For a given molecule, one mole is a mass (in grams) whose number is equal to the atomic mass of the molecule. For example, the water molecule has an atomic mass of 18, therefore one mole of water weighs 18 grams. An atom of neon has an atomic mass of 20, therefore one mole of neon weighs 20 grams. In general, one mole of any substance contains Avogadro's Number of molecules or atoms of that substance. This relationship was first discovered by Amedeo Avogadro (1776-1858) and he received credit for this after his death.

To see more on Mole Day Check out the National Mole Day

Foundation at:

Mole Facts:

- October 23rd is celebrated by chemist around the world

as National Mole Day in honor of Amadeo Avogadro.


- One mole of paper is equal to a stack that would reach to the

moon and back 80 BILLION times!

Ten Commolements

by Tom Knickerbocker and Kenny Quick

Thou shalt not use 6.02 x 10^23 in vain.

Thou shalt not use the term mole if thou has no true knowledge of the term mole.

Thou shalt not kill a mole.

Thou shalt not covet your neighbor's mole.

Thou shall always remember to celebrate Mole Day.

Thou shalt not disparage Mole Day.

Thou shalt not use a mole out of season.

Thou shall always honor the one who introduced thou to Mole Day.

You shall always keep sacred 10/23.

Thou shall always remember these commolments or thou will never properly celebrate Mole Day.


More Mole Day Links

Play Mole-ionaire

Mole Song
The Mole
Mole Facts

Mole Pledge

More Mole Jokes

Famous Chemists/Inventor/Physicists Links