About This Chapter
Who's it for?
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- Students who have fallen behind in understanding chemical reactions or working with balancing chemical equations
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
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- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the Stoichiometry chapter exam.
Why it works:
- Study Efficiently: Skip what you know; review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the Stoichiometry chapter exam to be prepared.
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Students will review:
This chapter helps students review the concepts in a Stoichiometry unit of a standard college-level general chemistry course. Topics covered include:
- Mole-to-mole ratios
- Mass-to-mass stoichiometric calculations
- Limiting reactants and calculating excess reactants
- Calculating reaction yield and percentage yield from a limiting reactant
- Calculating percent composition and determining empirical formulas
1. Chemical Reactions and Balancing Chemical Equations
In this lesson, you'll learn how to balance a chemical reaction equation using the conservation of matter law. You'll also learn how to write both word and formula equations, what the subscripts after a letter mean and what the numbers in front of compounds mean.
2. Mole-to-Mole Ratios and Calculations of a Chemical Equation
Learn what a mole ratio is and how to determine and write the mole ratio relating two substances in a chemical equation in this video lesson. Also, learn to make mole-to-mole calculations and solve problems involving moles of substances.
3. Mass-to-Mass Stoichiometric Calculations
Learn how to set up and make mole to mass, mass to mole and mass to mass stoichiometric calculations. Learn how the ratios of moles helps you compare and make calculations. Learn how to relate mole ratios to molar mass.
4. Stoichiometry: Calculating Relative Quantities in a Gas or Solution
In this lesson, learn about molar volume and how to set up and make stoichiometric calculations with gases. Then learn about solution stoichiometry and how to make stoichiometric calculations with solutions.
5. Limiting Reactants & Calculating Excess Reactants
In this lesson, you'll learn what limiting reactant and excess reactant mean and how to determine which reactant is limiting in a chemical reaction when given the amount of each reactant. You'll also discover how to calculate the amount of product produced.
6. Calculating Reaction Yield and Percentage Yield from a Limiting Reactant
Learn what the theoretical yield, actual yield and percent yield are. Given the limiting reactant, learn how to calculate the theoretical reaction yield, which is also known as the ideal reaction yield and percentage yield.
7. Calculating Percent Composition and Determining Empirical Formulas
Learn the difference between the empirical formula and chemical formula. Learn how to calculate the percent composition of an element in a compound. Learn how, if given a percent composition, to determine the empirical formula for a compound.
8. Hydrates: Determining the Chemical Formula From Empirical Data
Learn the definition of a hydrate and an anhydrate in this lesson. Discover how, when given experimental data, you can determine the formula of a hydrate by following simple steps that include finding the moles of hydrate and anhydrate and comparing the two to write the formula.
9. Limiting Reactant: Definition, Formula & Examples
In this lesson, we'll use pizza, along with common chemical compounds and elements, to learn about limiting reactants in chemistry. Using easy-to-follow instructions, we'll also find out how to identify the limiting reactant in a chemical reaction.
10. Limiting Reactant Practice Problems
In this lesson, we're going to practice finding the limiting reactant. First, we'll review how to find the limiting reactant, then we'll solve two practice problems.
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Other chapters within the College Chemistry: Help and Review course
- Experimental Chemistry and Introduction to Matter: Help and Review
- Atoms: Help and Review
- The Periodic Table: Help and Review
- Nuclear Chemistry: Help and Review
- Chemical Bonding: Help and Review
- Liquids and Solids: Help and Review
- Gases: Help and Review
- Solutions: Help and Review
- Chemical Reactions: Help and Review
- Equilibrium: Help and Review
- Kinetics: Help and Review
- Thermodynamics: Help and Review
- Chirality in Organic Chemistry: Help & Review
- Stereochemistry: Help & Review