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Stoichiometry, Gas Stoichiometry
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1 mol KClO3

122.55 g KClO3

3 mol O2

2 mol KClO3

22.4 L O2

1 mol O2

= 13.7 L O2

Slide 9

Gas Stoichiometry #4

Gas Stoichiometry #4

How many liters of oxygen gas, at 37.0C and 0.930 atmospheres, can be collected from the complete decomposition of 50.0 grams of potassium chlorate?

2 KClO3(s)  2 KCl(s) + 3 O2(g)

50.0 g KClO3

1 mol KClO3

122.55 g KClO3

3 mol O2

2 mol KClO3

=

mol O2

= 16.7 L

0.612

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