Final NB 2016-2017 Turley

Review Purposes
To get an overall view of stoichiometry.
Apply skills learned to perform quantitative chemical analysis.
Apply theories and rules of chemistry to solve problems.
Assess areas of strength and weakness for review purposes.
Improve problem solving strategy and learning efficiency.
Stoichiometry
STOICHIOMETRY is the quantitative relationship of reactants and products. This unit has been
divided into the following objects. A brief review is given here so that you can get a birds'-eye or
overall view of stoichiometry.
1.Amounts of substances
Express amounts of substance in mass units of g, kg, tons, and convert them to moles,
kilomoles, or millimoles.
2.Chemical formulas
Represent a substance with a formula that reflects its chemical composition, structure, and
bonding; evaluate weight and mole percentages of elements in a substance; and determine
chemical formula by elemental analysis.
3.Reaction features
Define some common features of chemical reactions; classify chemical reactions by common
features such as combination, combustion, decomposition, displacement, and redox reactions.
4.Reaction equations
Express quantitative relationships using chemical reaction equations; evaluate quantities of
reactants and products in a chemical reaction; and solve reaction stoichiometry problems.
5.Excess and limiting reagents
Define excess and limiting reagents; determine excess and limiting reagents in a reaction
mixture; and determine quantities produced in a chemical reaction.
6.Yields
Define theoretical and actual yields due to limiting reagent; apply the concept of limiting
reagent to evaluate theoretical yield; convert actual yield to percentage yields.
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