# Ch 13: Stoichiometry and Chemical Equations

Watch video lessons and learn about stoichiometry, an offshoot of chemistry that examines chemical reactions. These lessons include self-assessment quizzes to test your knowledge of chemical equations and stoichiometry.

## Stoichiometry and Chemical Equations - Chapter Summary and Learning Objectives

Stoichiometry is a chemical science that studies the way substances are transformed into other substances by way of chemical reactions. In this chapter, use easy-to-understand explanations and illustrations to take the mystery out of this complex subject, while learning how to read and write chemical equations. You'll also learn how to perform calculations using a chemistry mole or unit of measurement. When you complete the chapter, you should be able to:

• Use a ratio to exchange one substance for another in a chemical equation
• Find the relative quantities of a gas or solution
• Understand the meaning of limiting and excess reactants
• Appreciate the difference between the theoretical and actual yields of a substance
• Calculate percent composition or how much of an element is found in a compound
• Compute a formula for a hydrate or crystalline compound

VideoObjective
Chemical Reactions and Balancing EquationsObserve and record chemical reactions; write and balance a chemical equation using a word equation
Mole-to-Mole Ratios and Calculations of a Chemical EquationDetermine and write a mole ratio for two substances in a chemical equation; make mole-to-mole calculations
Mass-to-Mass Stoichiometric CalculationsEstablish and compute mass-to-mass stoichiometric computations
Stoichiometry: Calculating Relative Quantities in a Gas or SolutionEstablish and compute stoichiometric computations involving gases and solutions
Limiting Reactants and Calculating Excess ReactantsDetermine which reactant is limiting; calculate excess reactant amounts
Calculating Reaction Yield and Percentage Yield from a Limiting ReactantUse the given for a limiting reactant to compute ideal reaction and percentage yields
Calculating Percent Composition and Determining Empirical FormulasCompute the percent composition of an element in a compound; use the given for a percent composition to determine the empirical formula for an element in a compound
Hydrates: Determining the Chemical Formula from Empirical DataUse given experimental data to calculate the formula of a hydrate

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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