Chemistry (Grades 9–12) Subtest 1

Subarea III. Stoichiometry

0007

Understand the mole concept.

demonstrating knowledge of the mole concept
calculating the concentrations of solutions in terms of molarity, molality, percent by mass, and mole fraction
applying the mole concept to solve problems involving molar mass, percent composition, and empirical and molecular formulas

0008

Understand stoichiometry.

demonstrating the ability to interpret chemical notation; balance chemical equations, including oxidation-reduction equations; and recognize net ionic equations
solving stoichiometric problems involving moles, mass, volume, and energy, including problems with limiting reactants
calculating the percent yield for given chemical reactions