Today we will: Learn about the mole. Today we will:

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Presentation transcript:

Today we will: Learn about the mole

Today we will:

Counting units: pair dozen score gross ream mole

Counting units: pair2 dozen score gross ream mole

Counting units: pair2 dozen12 score gross ream mole

Counting units: pair2 dozen12 score20 gross ream mole

Counting units: pair2 dozen12 score20 gross144 ream mole

Counting units: pair2 dozen12 score20 gross144 ream500 mole

Counting units: pair2 dozen12 score20 gross144 ream500 mole

Counting units: pair2 dozen12 score20 gross144 ream500 mole6.02 x 10 23

The mole 1 mole = 6.02 x 10 23

The mole The mole, also called Avogadro's number, is the SI unit for the amount of a substance.

The mole How many roses in 3.5 dozen?

The mole How many roses in 3.5 dozen? 12 roses 3.5 doz x = doz

The mole How many roses in 3.5 dozen? 12 roses 3.5 doz x = 42 roses doz

The mole How many atoms in 3.5 moles?

The mole How many atoms in 3.5 moles? 6.02 x atoms 3.5 mol x = mol

The mole How many atoms in 3.5 moles? 6.02 x atoms 3.5 mol x = mol 21.1 x atoms

The mole How many atoms in 3.5 moles? 6.02 x atoms 3.5 mol x = mol 2.11 x atoms

The mole How many moles are 4.5 x atoms? 1 mol x = 6.02 x 10 23

The mole How many moles are 4.5 x atoms? 1 mol x = 6.02 x mol

Homework: Problems 1-4 on pages Please get started now so that when you get stuck, I’m here to help.