Mole Day

Mole Day celebrated annually on October 23 from 6:02 a.m. to 6:02 p.m. commemorates Avogadro’s Number – a basic measuring unit in Chemistry!


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Mole Day – October 23rd

Celebrated annually on October 23rd from 6:02 a.m. to 6:02 p.m., Mole Day commemorates Avogadro’s Number (6.02 x 1023), which is a basic measuring unit in chemistry.  Mole Day was created as a way to foster interest in chemistry. 

Schools throughout the United States and around the world celebrate Mole Day with various activities related to chemistry and/or moles.

For a given molecule, one mole is a mass (in grams) whose number is equal to the molar mass of the molecule. For example, the water molecule has an molar mass of 18, therefore one mole of water weighs 18 grams. 

In general, one mole of any substance contains Avogadro’s Number of molecules or atoms of that substance. 

This relationship was first discovered by Amadeo Avogadro (1776-1858) and he received credit for this after his death.

National Mole Day Competition 2011

The Departments of Chemical Engineering and Chemistry in CIT launch this year’s National Mole Day Competition for Irish Second Level Schools. Help celebrate National Mole Day in Ireland by entering this competition for schools. For full details of our competitions visit www.cit.ie/moleday

 
 
Show how your school celebrated Mole Day and you could win a laptop for your school. There is also an individual prize for students. Enter your poster, flag or animation on the Mole Day theme and be in with a chance to win an Apple iPad for yourself.

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