National Mole Day
This holiday is featured in the Obscure Holiday Calendar app with emoji-style visuals, reminders, and daily fun facts.
Overview
National Mole Day is an unofficial holiday celebrated by chemists, chemistry students, and enthusiasts on October 23rd, from 6:02 a.m. to 6:02 p.m. It commemorates Avogadro's number (approximately 6.022 x 10^23), which defines the number of particles (atoms, molecules, ions, etc.) in one mole of a substance. The day aims to foster interest in chemistry and celebrate this fundamental unit of measurement in a fun and engaging way.
Observed each year on October 23, National Mole Day invites people to pause, share the story, and bring a little themed joy to their day.
Origin and story
Mole Day's date (10/23) and time (6:02 a.m. to 6:02 p.m.) are directly derived from the digits of Avogadro's number, 6.02 x 10^23.
The term 'mole' was first coined by German chemist Wilhelm Ostwald in 1900, derived from the Latin word 'moles' meaning a 'heap' or 'pile.'
Quick facts
- DateOctober 23
- TypeCultural / community observance
- Great forFriends, Families, Classrooms, Teams
Also on this date
Ways to celebrate
- Pair music, snacks, or décor that match the theme and enjoy a small break.
- Share the story of National Mole Day on social and tag it with #nationalmoleday so others can join in.
- Post a story with #national-mole-day and invite others to try a tiny activity.
- Bring National Mole Day to work or school with a short shout-out in a meeting or group chat.
- Share one fast fact about National Mole Day: Mole Day's date (10/23) and time (6:02 a.m.
Fun facts
- Mole Day's date (10/23) and time (6:02 a.m. to 6:02 p.m.) are directly derived from the digits of Avogadro's number, 6.02 x 10^23.
- The term 'mole' was first coined by German chemist Wilhelm Ostwald in 1900, derived from the Latin word 'moles' meaning a 'heap' or 'pile.'
- If you had a mole of standard 8.5x11 sheets of paper, the stack would reach from the Earth to the Sun and back over a million times.
Sources and attribution
Source not provided.
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FAQ
- When is National Mole Day?
- It is observed on October 23 each year.
- What is National Mole Day?
- National Mole Day is an unofficial holiday celebrated by chemists, chemistry students, and enthusiasts on October 23rd, from 6:02 a.m. to 6:02 p.m. It commemorates Avogadro's number (approximately 6.022 x 10^23), which defines the number of particles (atoms, molecules, ions, etc.) in one mole of a substance. The day aims to foster interest in chemistry and celebrate this fundamental unit of measurement in a fun and engaging way.
- How do people celebrate National Mole Day?
- Pair music, snacks, or décor that match the theme and enjoy a small break.
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