Page "Mole Day" Paragraph 0

Mole Day is an unofficial holiday celebrated among chemists on October 23, between 6: 02 AM and 6: 02 PM, making the date 6: 02 10 / 23 in the American style of writing dates.

The time and date are derived from Avogadro's number, which is approximately 6. 02 × 10 < sup > 23 </ sup >, defining the number of particles ( atoms or molecules ) in one mole of substance, one of the seven base SI units.