Mole Day 2491

Tuesday, 23 October 2491

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.

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Frequently asked questions

When is Mole Day 2491?
Mole Day 2491 is on Tuesday, 23 October 2491.
What day of the week is Mole Day 2491?
It falls on Tuesday.
How is Mole Day calculated?
This event is observed every year on 23 October.