Unit+3+-+The+Mole

What is a mole?
= = 6.02x10²³=>1 mol > >
 * __A mole__ is the amount of pure substance containing the same number of chemical units as there are atoms in exactly 12 grams of carbon-12 (i.e., 6.02x10²³ ).
 * In chemistry, we use __Avogadro's number__, and we call the unit a mole.
 * [|Avogadro's number], the number of particles in a mole, this number is approximately 6.02x10²³
 * The particles can be [|atoms], [|molecules], [|ions], [|formula units], [|electrons], [|photons]or other particles. (eg. 1 mol of doughnuts, 1 mol of oxygen molecules, etc.)
 * A mole is much like "a dozen". It is a counting unit

Happy Mole Day to You!
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**Mo****le Day** is an unofficial holiday celebrated among chemists in North America 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 the [|Avogadro constant], which is approximately 6.022×1023, defining the number of particles (atoms or molecules) in a [|mole], one of the seven base [|SI] units.

Mole Day originated in an article in //The Science Teacher// in the early 1980s. Inspired by this article, Maurice Oehler, now a retired high school chemistry teacher from Prairie du Chien, Wisconsin, founded the National Mole Day Foundation (NMDF) on May 15, 1991. Many high schools around the United States and in Canada celebrate Mole Day as a way to get their students interested in chemistry, with various activities often related to chemistry or moles.

The purpose of the **National Mole Day Foundation** was and continues to be to get all persons, especially students, enthused about chemistry. To do that we would systematically collect ideas from many people, mostly high school chemistry teachers who celebrate Mole Day, assemble those ideas into //idea newsletters//, and then distribute them to those who become members of the Foundation.

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