Chemistry: Stoichiometry of Reactions

We have 16 ready-to-use problem sets on the topic of Stoichiometry. These problem sets focus on the use of the coefficients of a balanced chemical equation and molar mass values to relate the amount of reactants and products involved in a chemical reaction. Problems will range from the very easy mole-to-mole calculations to the more difficult limiting reactant problems.

Click a link to open a publicly-available problem set.  If you are a Task Tracker student, open the assignment using the link on the Task Tracker assignment board.

Problem Set ST1:  Introduction to Stoichiometry
Use coefficients of a balanced chemical equation to calculate the number of particles or the number of moles of reactants and products involved in a reaction.  Includes 5 problems.

Problem Set ST2:  Mole-to-Mole Stochiometry
Use coefficients of a balanced chemical equation to calculate the number of moles of reactants and products involved in a reaction. Includes 4 problems.

Problem Set ST3: Mole-to-Mole-to-Mass Stoichiometry 1
To perform two-step conversions to determine the mass of a reactant or product from knowledge of the number of moles of a reactant or product involved in the reaction (or vice versa). Problems are highly scaffolded. Includes 5 problems.

Problem Set ST4: Mole-to-Mole-to-Mass Stoichiometry 2
To perform two-step conversions to determine the mass of a reactant or product from knowledge of the number of moles of a reactant or product involved in the reaction (or vice versa). Includes 6 problems.

Problem Set ST5: Introduction to Mass-to-Mass Stoichiometry
To use molar mass values and a balanced chemical equation to relate the mass of reactants to the mass of products. Includes 2 multi-part analyses.

Problem Set ST6: Mass-to-Mass Stoichiometry 1
To use molar mass values and a balanced chemical equation to relate the mass of reactants to the mass of products. Problems include a lot of scaffolding. Includes 5 problems.

Problem Set ST7: Mass-to-Mass Stoichiometry 2
To use molar mass values and a balanced chemical equation to relate the mass of reactants to the mass of products. Includes 5 problems.

Problem Set ST8: Mass-to-Mass Stoichiometry 3
To use molar mass values and a balanced chemical equation to relate the mass of reactants to the mass of products. Includes 6 problems.

Problem Set ST9: Mass-to-Mass Stoichiometry 4
To use molar mass values and a balanced chemical equation to relate the mass of reactants to the mass of products. Most problems include some additional conversions beyond the three stoichiometry steps. Includes 6 problems.

Problem Set ST10: Mass-to-Mass Stoichiometry 5
To use molar mass values and a balanced chemical equation to relate the mass of reactants to the mass of products. Problems include some additional conversions beyond the three stoichiometry steps. Includes 5 problems.

Problem Set ST11: Introduction to Limiting and Excess Reactant Problems
To use the stoichiometric relationship between reactants and the given amount of reactants (in grams or moles) in order to determine the limiting reactant and the amount of product produced (in moles). Numerical information is simple.  Includes 5 multi-part problems with information organized in tables.

Problem Set ST12: Stoichiometry and ICE Tables
To use an ICE Table (Initial-Change-Ending) to analyze a limiting/excess reactant problem. Includes 6 problems.

Problem Set ST13: Limiting Reactant Problems 1
To use the given amount  (in moles or grams) of two reactants to determine the limiting reactant, the amount (in moles or grams) of product produced, and the amount (in moles or grams) of excess reactant remaining. Lots of scaffolding is provided. Includes 5 multi-part problems.

Problem Set ST14: Limiting Reactant Problems 2
To use the given amount  (in grams) of two reactants to determine the limiting reactant, the amount (in grams) of product produced, and the amount (in grams) of excess reactant remaining. Includes 6 problems.

Problem Set ST15: Stoichiometry and Limiting Reactants 3
To use the given amount (in grams) of two reactants to determine the limiting reactant, the amount (in grams) of product produced, and the amount (in grams) of excess reactant remaining. Includes 6 problems.

Problem Set ST16: Balance and Solve
To write and balance a chemical equation for a reaction and to use the balanced chemical equation to solve a gram-to-gram stoichiometry problem. Includes 6 problems.