Avogadro says, "Moles are our friends"

Mole Calculations Require Dimensional Analysis

 
A Mole is:

• 6.02 x 10²³ of anything.
• The formula mass in grams of a substance contains one mole of particles.
• N_a = Avogadro's Number = 6.02 x 10²³

How BIG is a mole?

Spreading a "mole" of marbles over the entire surface of the earth would produce a layer about three miles thick.

When will the World's computers have a mole of digital data stored in them?
 

Important mole conversion factors:
1 mole = 6.02 x 10²³ particles = formula mass in grams