Moles

This section is one of the main workhorses of the program. In many problems that you will encounter, you must be able to calculate grams, moles or the number of atoms. The mole is the major unit of quantity in chemistry. Consider it to be the chemical equivalent of a dozen. The following equation is absolutely essential to remember.

1 mole = 1 gram atomic weight = 6.02E23 atoms. No matter which element you are working with, the above relationship is true.

If you have 1 mole of a substance, you have 1 gram atomic weight. You also have 6.02E23 atoms of that substance. 