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Stoichiometry Review Worksheet

Last updated almost 5 years ago

3 questions

1

Question 1

1.

How many moles of potassium oxide are produced by the reaction of 4.11 g of potassium with excess oxygen?
_K + O2 🡪 _ K2O

1

Question 2

2.

Calcium carbonate reacts with phosphoric acid to produce calcium phosphate, carbon dioxide, and water according to the following unbalanced reaction. How many liters of carbon dioxide are produced when 4.75 g of CaCO3 reacts with an excess of phosphoric acid?
3CaCO3 + 2H3PO4 → Ca3(PO4)2 + 3CO2 + 3H2O

1

Question 3

3.

Carbon monoxide combines with oxygen to form carbon dioxide. How many liters of oxygen are needed to completely oxidize 52.0 L of carbon monoxide gas at STP?
___CO + _O2 →__CO2