1. Section 3: Mole Conversions
Sections 10.1 to 10.2 in text

2. 1 mole = 6.022 x 1023 (This is known as Avogadro’s Number)
Mole to particle Conversion: Find number of particles that are in 20 moles of H2O2:

3. Molecular Weight: The mass of a material per mole of substance
Find the molecular weight of the following materials:
NaCl
CaCO3
Fe(NO3)2

5. Mass and Mole Conversions
Mass to Moles 1) Convert 20 grams of NaCl to moles:
Moles to Mass 2) Convert 10 moles to CH4 to grams:

6. Text Problems Mole Problems: Pg 296 (9-15)
Mass to Mole: Pg 315: & (58-59) ***73*** ***93***

7. Go to worksheet

8. Warm Up: Find the mass of 3.7x1021 molecules of KNO3

9. Warm-Up Find the molecules in 2.8 moles of NaCl:
Find the mass of 77 moles of KCO3:
Find the mass of 7.1x1022 molecules of H2O2 :

10. Conversion Calculation Quiz (7 pts each)
Find the number of moles in 3.5 grams of NO2
Find the mass of 70 moles of C:
3) Find the mass of 2.2x1021 molecules of CO2