The Mole and Single Step Mole Conversions

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Presentation transcript:

The Mole and Single Step Mole Conversions

What is a Mole? A mole (mol) is the amount of a substance that contains as many particles as there are atoms in exactly 12 grams of Carbon-12. A mole is a unit of measurement, like a dozen eggs. 1 mole = 6.02 X 1023 atoms/molecules. This is called Avogadro’s number.

Converting Using Avogadro’s Number: Things to Remember: Use your railroad tracks! The unit you start with goes in the upper left box. The next box is your conversion factor; the starting unit goes on the bottom!

Converting Using Avogadro’s Number: Moles to Atoms: Multiply by 6.02 X 1023 Ex: How many atoms are in 47 moles of Copper? How many molecules are in 1.69 moles of NaCl?

Converting Using Avogadro’s Number: Atoms to Moles: Divide by 6.02 X 1023 Ex: How many moles are in 41,720 atoms of Nickel? How many moles are in 51,002,785 molecules of Li2O?