NAME:
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PERIOD:
HOMEWORK 9.3 STOICHIOMETRY
a. Review your notes.
b. Answer the following:
1. Chloroform (CHCb), an important solvent, is produced by a reaction between methane and chlorine:
CH4 (g) + 3Ch (g) ~ CHCb (g) + 3HCI (g)
Determine the mass (g) of methane required to produce 50.0g ofCHCh.
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2. Car batteries use solid lead and lead (IV) oxide with sulfuric acid solution to produce an electric current. The
products of this reaction are lead (II) sulfate in solution and water:
Pb (s) + Pb02 (s) + 2H2S04 (aq) ~ 2PbS04 (aq) + 2H20 (I)
Determine the mass (g) ofPbS04 produced when 25.0g lead reacts.
OVER
Aff
2NaN3 (s)
-+
2Na (s)+ 3N2 (g)
4. In the formation of acid rain, sulfur dioxide reacts with oxygen and water in the air to form sulfuric acid:
Determine the mass (g) of sulfuric acid formed when 2.50g of sulfur dioxide react.