Carolina ChemKits®: Advanced Stoichiometry
Introduce students to the method of continuous variation to determine molar ratios. Students vary the amount of reactants in an exothermic reaction and measure the resultant temperature change. Pooled class data is used to investigate how varying reactant mole ratios affects temperature change. After constructing a Job's plot of the data, students determine the correct molar ratios for a balanced equation. Kit materials equip a class of 30 students.