NOVEMBER 17- MARCCCUS LU

MOLES

CHAPTER 4 ---- THE MOLE

Molar Mass is a unit of measurement.  A mole is anything that has the same particle number as 12.00 grams of carbon.  The number of particles is Avogardo's number :  6.02 X 10^23.

TO find the molar mass of a substance, you use a periodic table to find the atomic mass underneath the name of the substance, and write it in grams per mole

EX:  1 mole of oxygen = 16.0 grams per mole

 1 mole of potassium= 39.1 grams/ mole

REMEMBER: The number of particles in 1 mole of any substance is 6.022 X 10^23 particles/mol




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