1. Ch. 10 Moles!

2. Review: How many is a mole?
602,200,000,000,000,000,000,000
Summary: A LOT

3. Molar Mass The Mass of 1 mole (in grams)​
SAME as avg. atomic mass (bottom # in periodic square)​
Examples:
1 mole of  C atoms =  g
1 mole of Mg atoms = g​
1 mole of Cu atoms = g​

4. Finding Molar Mass of Compounds
Step 1: Find Molar Masses of each element
Step 2: add them together
Example: O2
Step 1: Oxygen’s Molar Mass = g
Step 2: We have 2 Oxygens so…
16.00 x 2 = 32g
16.00

5. Learning Check: When ready write your group’s answer on the board
1) H2 5) CaCl2
2) CO2 6) KCl
3) HCl 7) MgCl2
4) Br2