1. DO NOW: Turn in your homework! Fill in Table of Contents
Using the following equation:
2 NaOH + H2SO4  2 H2O + Na2SO4
How many grams of sodium sulfate will be formed if you start with 200 grams of sodium hydroxide and you have an excess of sulfuric acid?
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2. After today you will be able to…
Calculate the volume or number of particles produced or reacted of a substance given its chemical equation

3. Remember… 1 mole = 6.02x1023 atoms, molecules, or formula units
1 mole = 22.4L (for any gas at STP)

4. More Stoichiometry Conversions
Example: How many grams of aluminum can react with 336L of oxygen?
aluminum + oxygen 
Al O-2
aluminum oxide
__Al 4
__ O2 3 
__ Al2O3 2 +
K: 336L O2
U: ? g Al
336L O2 1
1 mol O2
22.4L O2
4 mol Al
3 mol O2
26.98 g Al
1 mol Al x x x =
5.40x102 g Al

5. More Stoichiometry Conversions
Example: Using the same equation, how many formula units of aluminum oxide can be produced from 137 grams of aluminum?
__Al 4
__ O2 3 
__ Al2O3 2 +
K: 137g Al
U: ? F.U. Al2O3
137g Al 1
1 mol Al
26.98g Al
2 mol Al2O3
4 mol Al
6.02x1023 F.U.
1 mol Al2O3 x x x =
1.53x1024 F.U. Al2O3

6. More Stoichiometry Conversions
Number 1: How many formula units of sodium nitrate will react with 20.0 g of calcium carbonate to product sodium carbonate and calcium nitrate according to the following reaction?
2 Na(NO3) + Ca(CO3)  Na2(CO3) + Ca(NO3)2

7. Complete Worksheet!
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