1. Practice: Determine the molar mass for the following:
FeCl3
3.CaC2O4
P2O5
4. Ba(ClO3)2

2. Practice: Determine the molar mass for the following:
FeCl3
(35.45 * 3) = g/mole
2. P2O5
(30.97*2)+(16.00*5)= g/mole
3.CaC2O4
(2*12.01) + (4*16.00) = g/mole
4. Ba(ClO3)2
(35.45*2) +(16.00*6) = g/mole

3. (atom, molecule, formula units)
Particles
(atom, molecule, formula units)
Grams
Mole
Volume

4. A Mole=
6.02 x 1023 particles

5. or 1 mole = 6.02 x 1023 molecule 1 mole = 6.02 x 1023 formula unit
1 mole = 6.02 x 1023 atom or
1 mole = 6.02 x 1023 molecule
1 mole = 6.02 x 1023 formula unit

6. Particles Type of Substance Description Particles ( UNIT) Element
1 symbol
ATOM
Covalent Molecule
2 or more NM
MOLECULE
Ionic Compound
Cation-Anion
M -NM
FORMULA UNIT

7. Determine the type of Particle
1. Mg
2. C3H8
3.NaCl
4. CBr4
5. Li
6. K2O
7. Cl2
8. H2O

8. Determine the type of Particle
1. Mg
2. C3H8
3.NaCl
4. CBr4
5. Li
6. K2O
7. Cl2
8. H2O

9. (atom, molecule, formula units)
Particles
(atom, molecule, formula units)
Mole

10. Using Representative Particles
Example Problems
Using Representative Particles

11. How many molecules are in 2.12 mole of propane-C3H8 ?
Given Info:
Conversions:
Work:
Looking for?
Answer:

12. How many molecules are in 2.12 mole of propane-C3H8 ?
Given Info:
2.12 mole C3H8
Conversions:
1 mole = 6.02x1023
molecule
Work:
2.12 mole x 1023 molecule
C3H C3H8
1 mole C3H8
Looking for? molecules C3H8
Answer: x 1024 molecule C3H8

13. Example Problems
Using Molar Mass

14. Grams
Mole

15. How many molecules are in 4.42 x 106g of water molecules?
Given Info:
Conversions:
Work:
Looking for?
Answer

16. (atom, molecule, formula units)
Particles
(atom, molecule, formula units)
Grams
Mole

17. How many molecules are in 4.42 x 106g of water molecules?
Given Info:
4.42 x 106g
Conversions:
MM = 18.02g H2O
1 mole
1mole = 6.02x1023
molecule
Work:
4.42x106g 1 mole x1023 molecules
H2O H2O H2O
18.02 g mole H2O
H2O
Looking for?
molecules
Answer: x 1029 molecules

18. Example Problems
Using Molar Volume

19. Molar Volume @ STP only Standard Temperature and Pressure: STP
Standard Temperature: 273K
Standard Pressure: 1 atmosphere (atm)
At these 2 conditions: Molar Volume
1 mole = 22.4L

20. Mole
Volume

21. How many liters are 2.78 x 1031 formula unit of lead (IV) oxide?
Given Info:
Conversions:
Work:
Looking for?
Answer:
How many liters are 2.78 x 1031 formula unit of lead (IV) oxide?

22. How many liters are 2.78 x 1031 formula units of lead (IV) Oxide?
Given Info:
2.78 x 1031 molecules
Conversions:
1 mole =6.02x1023
formula unit
PbO2
Work:
2.78 x1031 formula unit PbO2 1 mole PbO L PbO2
6.02 x mole PbO2
formula unit PbO2
Looking for?
liters
Answer: 1.03 x 109 L PbO2
How many liters are 2.78 x 1031 formula units of lead (IV) Oxide?

23. A Mole is an Unit