The Mole by Sahana Kanabar

The mole allows the quantities of atoms and molecules

to be calculated in an easier fashion as well simplifying

small decimal-pointed numbers. Scientist created a

relationship between the atomic mass unit and the

gram, the number of moles equals the number of grams

in a given sample divided by the molecular mass of the

substance. This means one mole of carbon, whose

molecular mass is 12, would weigh 12 grams.

A mole, also known as

Avogadros number, is a unit of

measurement. It is used to

measure atomic quantity and is

based on the number of

carbon atoms in a gram. The

mole represents the number of

particles of a certain substance. AVOGADROS NUMBER

Avogadros number is named after Amedeo Avogadro, an

Italian chemist. Avogadro was interested in the law of combining

volumes, created by Joseph Louis Gay-Lussac. The law stated

that when two volumes of gases react with one another to

create a third gas, the ratio between the volume of the reactants

and the volume of the product is always made of simple whole

numbers. If this were true, than in 1811 Avogadro figured that

equal volumes of any two gases at the same temperature and

pressure must hold an equal number of particles. This idea

didnt gain traction until after Avogadros death, when chemist

Stanislao Cannizzaro developed it further.

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Atteberry, Jonathan. "What Is Avogadro's Number?" HowStuWorks. HowStuWorks.com, n.d. Web. 14 Oct. 2014.