Stoichiometry Graded Assignment
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Mg + NaF  MgF2 + Na
o Interpret the following equation in terms of representative particles, moles, and mass.
2 HCl + Na2SO4  2 NaCl + H2SO4
o Identify all the possible mole ratios.
NH3 + O2  N2O + H2O
o If 80.0 grams of O2 are reacted in the above reaction, how many liters of O2 will be
produced?
MnO2 + 4 HCl  Cl2 + MnCl2 + 2 H2O
o Given 145.7 grams of manganese (IV) oxide, how many liters of hydrochloric acid (HCl) is
needed to use up the MnO2 completely?
Fe2O3 + 3 C  2 Fe + 3 CO
o How many atoms of carbon are needed to completely react with 125 g of iron (III) oxide?
Ca + AlCl3  CaCl2 + Al
o If you react 3.2 moles of aluminum chloride with excess calcium, how many grams of
aluminum chloride are produced?
C5H12 + 8 O2  5 CO2 + 6 H2O
o How many moles of carbon dioxide will form from the combustion 320.0 grams of C5H12
with excess oxygen?
4 FeS2 + 11 O2  2 Fe2O3 + 8 SO2
o Given 63.2 L of iron (IV) sulfide, how many molecules of sulfur dioxide are produced?
Al + O2  Al2O3
o How many liters of Al2O3 will be formed from 17.4 moles of Al?
HCl + Cu  CuCl2 + H2
o How many grams of hydrogen are produced when 2.63 x 1022 molecules of hydrochloric acid
(HCl) are reacted with copper?
KClO3 (s) --> KCl (s) + O2 (g)
o If 138.6 g of KClO3 is heated and decomposes completely, what volume of oxygen gas is
produced?
Al (s) + CuSO4 (aq) --> Al2(SO4)3 (aq) + Cu (s)
o How many grams of aluminum sulfate are produced if 23.33 g Al reacts with 74.44 g CuSO4?
NaClO3 (s) --> NaCl (s) + O2 (g)
o 12.00 moles of NaClO3 will produce how many grams of O2?
o How many formula Units of NaCl are produced when 80.0 grams of O2 are produced?