1. Molar Conversions (p.80-85, 221-226)
Ch. 3 & 7 – The Mole
Molar Conversions (p.80-85, )

2. C. Molar Conversions molar mass 6.02  1023 MOLES (g/mol)IN
GRAMS
MOLES
NUMBER OF
PARTICLES
(g/mol)
(particles/mol)

3. Molecules to mass Example
Find the mass of 21  1024 molecules of Carbon.
2.1  1024
Molecules C
1 mol C
6.02  1023
Molecules C
12.01 g C
1 mol C
= g C

4. Mass to molecule Example
Find the number of molecules in 2.5 grams Oxygen.
2.5 grams oxygen
6.02  1023
Molecules O
1 mol O
1 mol O
16 grams O
=9.4  1022
Molecules O