holy, moley!  It’s National Mole Day!  What a mole-velous event!   Here at Sacred Heart-of-Mole Central a contest is a brewing… There will be pictures….  And they’ll be here before 6:02 p.m.!  You have my s-mole-m word.

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 Amadeo Avogadro (1776-1858) and he received credit for this after
his death.