1. AUSTIN POWERS-THE MOLE http://www.youtube.com/watch?v=rc5G04nJecI

2. THE MOLE

3. WHAT IS A MOLE? Commonly abbreviated mol It’s a number used to count things 1mol = 6.02 × 10 23 (Avogadro's number)

4. WHAT KINDS OF THINGS? Number of atoms in an element Number of formula units in an ionic compound Number of molecules for a compound that is covalently bonded

5. TOM LEHRER-THE MOLE SONG http://www.youtube.com/watch?v=1R7NiIum2TI

6. EXAMPLE 1 Determine the number of atoms in 3.50 mol of aluminum (Al)?

7. EXAMPLE 2 Given 4.25 mol of sodium chloride (NaCl), determine the number of formula units?

8. EXAMPLE 3 Calculate the number of molecules in 12.6 mol of sulfer dioxide (SO 2 ).

9. EXAMPLE 4 How many moles are in 6.75 × 10 24 atoms of nickel (Ni)?

10. EXAMPLE 5 How many moles are in 1.25 × 10 24 molecules of carbon dioxide (CO 2 )?

11. EXAMPLE 6 How many moles are in 6.78 × 10 23 formula units of magnesium chloride (MgCl 2 )?