Minds On - Stoichiometry

The Stoichiometry Minds-On module consists of various missions (assignments) that address such topics as Stoichiometry. The missions and the corresponding objectives are listed below. Tap a mission's name to begin.

Activities

Mission ST1 Ratios and Relationships

Mission ST1 pertains to the meaning and role of coefficients in stoichiometry and the use of molar masses in stoichiometry. Students will perform some relatively simple and straightforward calculations to relate the moles of reactants and products involved in a reaction and to relate the moles to the mass.

Mission ST2 Conservation of Mass

Mission ST2 pertains to the law of conservation of mass. Students must be able to describe its meaning and use it to perform a mass analysis for a reaction. The mission consists of 20 questions organized into 5 Question Groups.

Mission ST3 Conversion Pathways

Mission ST3 pertains to the use of conversion factors in stoichiometry problems. Students must be familiar with the factor label method of unit cancellation. The mission consists of 36 questions organized into 9 Question Groups.

Mission ST4 Factor Label Method-Mole to Mole Conversions

Mission ST4 pertains to the use of the factor label method to convert from the given moles of a reactant to the moles of product (or vice versa). The mission consists of 20 questions organized into 5 Question Groups.

Mission ST5 Factor Label Method Mass to Mole to Mole Conversions

Mission ST5 pertains to the use of the factor label method to convert from the given moles of a reactant to the mass of product (or vice versa) or from the given mass of reactant to the moles of product (or vice versa). Students must be comfortable with the conversion factor method of unit cancellation. The mission consists of 24 questions organized into 6 Question Groups.

Mission ST6 Factor Label Method Mass to Mass Conversions

Mission ST6 pertains to the use of the factor label method to convert from the given mass of a reactant to the mass of product (or vice versa) or from the given mass of one reactant to the mass of a second reactant. Students must be comfortable with the conversion factor method of unit cancellation. The mission consists of 24 questions organized into 6 Question Groups.

Mission ST7 Non-Stoichiometric Conditions

Mission ST7 pertains to non-stoichiometric conditions. Students must be able to identify situations which are non-stoichiometric when given a balanced equation and available number of moles of reactants and be able to identify the limiting reactant. The mission consists of 32 questions organized into 8 Question Groups.

Mission ST8 Limiting Reactants

Mission ST8 pertains to limiting reactants. Students must be comfortable with the use of a simple ICE table (Initial amount, Change amount, and Ending amount) to analyze a limiting reactant scenario (in moles). The mission consists of 18 questions organized into 5 Question Groups.

Mission ST9 Excess Reactants

Mission ST9 pertains to excess reactants. Students must be comfortable with the use of a simple ICE table (Initial amount, Change amount, and Ending amount) to analyze a limiting/excess reactant scenario (in moles). The mission consists of 20 questions organized into 5 Question Groups.