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