Mole Day is a great day to bring the wonder of mathematics and science together for your friends and family!
This year’s theme for Mole Day is The Molevengers! You can encourage someone in science by taking some time with them to create a Molevengers project while you both learn about chemistry, science, and math! Checkout some projects from previous years.
Celebrated annually on October 23 from 6:02 a.m. to 6:02 p.m., Mole Day commemorates Avogadro’s Number (6.02 x 1023), 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 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.