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Mole Day
| Mole Day | |
|---|---|
| Observed by | Chemists |
| Type | Academic |
| Significance | Avogadro constant |
| Begins | 6:02 am on October 23 |
| Ends | 6:02 pm on October 23 |
| Date | October 23 |
| Next time | 23 October 2025 |
| Frequency | Annual |
Mole Day is an unofficial holiday celebrated among chemists, chemistry students, and chemistry enthusiasts on October 23 between 6:02 a.m. and 6:02 p.m.,[1][2][3][4] making the date 6:02 10/23 in either MDY or YMD date formats. The time and date are derived from the Avogadro constant, which is approximately 6.02×1023, defining the number of particles (atoms or molecules) in one mole (mol) of substance, one of the seven base SI units.
- ^ "National Chemistry Week Celebrates 20 Years", Chemical & Engineering News, vol. 85, no. 51, December 17, 2007, archived from the original on October 5, 2008, retrieved February 14, 2010
- ^ This Week in Chemical History, American Chemical Society, archived from the original on July 24, 2011, retrieved February 14, 2010
- ^ "Chemistry In The Spotlight", Chemical & Engineering News, vol. 88, no. 50, December 13, 2010, archived from the original on October 5, 2008, retrieved February 14, 2010
- ^ "Chemical club wins national recognition". Central Michigan Life. September 27, 2004. Archived from the original on January 19, 2013. Retrieved October 8, 2012.
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