Friday, October 23, 2015 at Everywhere
Starts at 12:00 AM · Ends on Oct 23, 2015 at 11:59 PM, CDT (America/Chicago)
May the Moles be with You: What is Mole Day?
For a given molecule, one mole is a mass (in grams) whose number is equal to the molar mass of the molecule. For example, the water molecule has an molar mass of 18, therefore one mole of water weighs 18 grams. Similarly, a mole of neon has a molar mass of 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.