Stoichiometry Practice Problems

1.) How many grams of Ag2SO4 can be produced from the reaction of 13.6 grams of AgNO3 with excess Na2SO4? (12.5 grams)

___ AgNO3 + ___ Na2SO4 ___ Ag2SO4 + ___ NaNO3

 

2.) How many grams of NaOH are needed to react completely with 9.3 grams of CaCO3 in a double replacement reaction? (7.4 grams)

___ NaOH + ___ CaCO3 ___ Na2CO3 + Ca(OH)2

 

3.) How many grams of oxygen are needed for the complete combustion of 25.0 grams of propane (C3H8)? (90.9 grams)

___ C3H8 + ___ O2 ___ CO2 + ___ H2O

 

4.) How many grams of silver are produced in the reaction of 0.139 moles of AgNO3 with copper? (15.0 grams)

___ AgNO3 + ___ Cu ___ Ag + ___ Cu(NO3)2

 

5.) How many moles of KNO3 can be produced when 24.0 grams of Ni(NO3)2 react with excess KOH? (0.263 moles)

___ Ni(NO3)2 + ___ KOH ___ Ni(OH)2 + ___ KNO3

 

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