Mole Day 1941

Thursday, 23 October 1941

Mole Day is a celebration of chemistry observed on 23 October, honouring Avogadro's number (6.02×10²³) and encouraging interest in science through educational activities and events.

Frequently asked questions

When is Mole Day 1941?
Mole Day 1941 is on Thursday, 23 October 1941.
What day of the week is Mole Day 1941?
It falls on Thursday.
How is Mole Day calculated?
This event is observed every year on 23 October.