1. Warm Up 2.2
1. Blue sheet 10, 11, & 12
2. How many protons, electrons, and neutrons are in:
Sn2-
3. Describe the Gold Foil Experiment
4. Lake Michigan holds 1.3 x 1015 gallons of water. How much is this in GL?
( 1 gallon = 37.9 dL)

3. Sn2- 2. 3. 4.

4. 1. What do the following words mean?
1.Pair 2. Couple 3. Peck 4. Dozen 5. Bushel 6. Gross 7. Ream 8. Mole

5. What do the following words mean?
1.Pair – 2 things 2. Couple- 2 people 3. Peck – 10.5 pounds 4. Dozen- 12 things 5. Bushel- 42 pounds 6. Gross- 144 (12-12packs) 7. Ream- 500 sheets of paper

6. All are words that represent a numerical value.

7. 1 Mole=
6.02 x 1023 atoms

8. Mole is a Unit Song

9. How many moles of magnesium is 1.25 x 1023 atoms?
Given:
Want?
Need:
Work:
Answer:

10. How many moles of magnesium is 1.25 x 1023 atoms?
Given:
Want?
Need:
Work:
Answer:

11. How many atoms are in 5 moles of sodium?
Given:
Want?
Need:
Work:
Answer:

12. Molar Mass
~ add up all the atomic mass on the periodic table: # grams 1 mole **** keep two decimal places

13. Molar Mass
39.10g mol
example: K =

14. Practice: Determine the molar mass for the following:Fe
3.Ca P
4. Ba

15. Practice: Determine the molar mass for the following:
Fe g/mole
P g/mole
Ca g/mole
4. Ba g/mole

16. How many grams are in 2.9 moles of iron?
Given:
Want?
Need:
Work:
Answer:

17. How many moles are in 62.45 grams of calcium?
Given:
Want?
Need:
Work:
Answer:

18. Mixed practice How many atoms are in 6.755 moles Lead?
How many moles are in grams of sulfur ?