1. The Mole

2. 1 dozen eggs = 12 eggs

3. Conversion factors make measurements easier to deal with!
1 dozen eggs = 12 eggs

4. 1 dozen eggs = 12 eggs 1 mole = 6.02 x 1023 atoms

5. 1 mole = 6.02x1023 atoms, molecules, or particles
= 602, , , , , , ,
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6. Who’s responsible for this madness?!
1 mole = 6.02 x 1023 atoms
Amedeo Avogadro

7. The mole provides chemists with an easy way of figuring out how many atoms/molecules/or particles of a substance are in a sample.
1 mole of He = 6.02 x 1023 atoms of He 1 mole of Al = 6.02 x 1023 atoms of Al 1 mole of Ar = 6.02 x 1023 atoms of Ar

8. Molar Conversions Using the Mole:

9. How many atoms are in 1.5 moles of Carbon (C)?

10. How many atoms are in 2.0 g of aluminum (Al)?

11. What is the mass of 7.5 x 1022 atoms of Nickel (Ni)?

12. WHITEBOARD PRACTICE

13. How many atoms are 2.5 moles of Sodium (Na)?

14. How many moles are in 25 g of Nitrogen (N)?

15. How many atoms are in 12.0 g of Helium (He)?