Ch 9: Stoichiometry

Watch stoichiometry video lessons to learn about mole-to-mole ratios, limiting reactants, reaction yields, empirical formulas and more. Use the quizzes that follow each lesson to check your understanding of stoichiometry.

Chemistry: Stoichiometry - Chapter Summary and Learning Objectives

'Stoichiometry' is a big, imposing word that simply refers to a branch of chemistry that looks at chemical reactions. It's concerned with what goes into a reaction (the reactants) and what comes out (the products). Its applications are basically everywhere, even if you don't realize it - for example, how does your body sustain itself off the food you eat and the air you breathe? How do scientists manufacture drugs to cure diseases? Stoichiometry can show you the way. After these lessons, you should be able to:

• Understand how to read and write a chemical equation
• Make calculations involving moles, mass, gases and solutions
• See how to maximize reactions by analyzing ideal yields
• Pick out the different substances in a chemical compound

Video Objective
Chemical Reactions and Balancing Chemical Equations Establish whether a chemical reaction occurred, then draft a chemical equation and make sure the equation is balanced.
Mole-to-Mole Ratios and Calculations of a Chemical Equation Analyze different substances and compare mole ratios as you run the numbers in these equations.
Mass-to-Mass Stoichiometric Calculations Inspect the differences between masses, then write corresponding stoichiometric equations.
Stoichiometry: Calculating Relative Quantities in a Gas or Solution Learn to make calculations involving solutions and gases.
Limiting Reactants & Calculating Excess Reactants Examine which reactants in a chemical reaction are limiting and calculate those in excess.
Calculating Reaction Yield and Percentage Yield from a Limiting Reactant Discover ideal yields and percentage yields from a reaction.
Calculating Percent Composition and Determining Empirical Formulas See what chemical compounds are made up of and determine their formulas.
Hydrates: Determining the Chemical Formula from Empirical Data Uncover the formula for a hydrate.

8 Lessons in Chapter 9: Stoichiometry
Test your knowledge with a 30-question chapter practice test
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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