Test on Stoichiometry
1. Balance each equation and give its type.
Al +
O2
NaClO3
Zn +


AgNO3
Al2O3
NaCl +

H3PO4 + Ca(OH)2 
C3H6 + O2 
reaction type
O2
Zn(NO3)2
H2O +
CO2 +
+
Ag
Ca3(PO4)2
H2O
Lead (II) nitrate reacts with sodium chloride to make lead (II) chloride and sodium nitrate.
2. Define: mole
stoichiometry
3. What is the molar mass of Al2(CO3)3?
4. Convert 1.25 mol Cl2 to grams.
Convert 1.25 mol Cl2 to molecules.
Convert 1.25 mol Cl2 to liters at STP.
©Modeling Instruction – AMTA 2013
1
U7 review v2.0
Convert 150.0 g Cl2 to moles.
Convert 150.0 g Cl2 to molecules.
Convert 150.0 g Cl2 to liters at STP.
5. Consider the reaction:
3 Ca + 2 AlCl3  3 CaCl2 + 2 Al
Which type of reaction is it?
Draw a particle model for the reaction.
reactants
products
How many moles Al are made from 2.35 mol Ca?
How many grams Al are made from 50.0 g Ca?
If the actual yield is 19.6 g Al, what is the percent yield?
©Modeling Instruction – AMTA 2013
2
U7 review v2.0