Mole Day 10/23 Celebrates Avogadro’s Number

6.02 x 10²³ may seem like a strange number, but it plays an important role in chemistry calculations, where it is known as Avogadro’s number (http://en.wikipedia.org/wiki/Avogadro_constant). To foster interest in chemistry, 6:02am to 6:02pm on 10/23 is celebrated each year as “Mole Day.” (A mole is a measure of the amount of substance and contains 6.02 x 10²³ atoms or molecules (http://en.wikipedia.org/wiki/Mole_(unit)) The National Mole Day Foundation (http://www.moleday.org/) promotes the observance of Mole Day and chose this year’s theme, “Molar Express.”