Mole Day

Mole Day is celebrated every year by chemistry enthusiasts and professionals on October 23, between 6:02 a.m. and 6:02 p.m. The date and time, 6:02 10/23 in American style, commemorates the Avogadro constant, which is approximately 6.02×1023. A mole is a fundamental unit used to describe a quantity of chemical building blocks like atoms, molecules, ions or electrons. For example, 6.02×1023 atoms is one mole of atoms.

Mole Day was created originally as a way to foster interest in chemistry. Schools around the world celebrate Mole Day with various activities related to chemistry and moles. In Canada, Mole Day often falls within National Chemistry Week.

The National Mole Day Foundation website provides additional information about the event, including a fun dictionary, merchandise and jokes related to moles.

Participate in National Chemistry Week
Learn more about the International Year of Chemistry in 2011
Learn more about the Chemical Institute of Canada (CIC)