About This Chapter
Who's it for?
Anyone who needs help learning or mastering AP chemistry material will benefit from taking this course. There is no faster or easier way to learn AP chemistry. Among those who would benefit are:
- Students who have fallen behind in understanding how to calculate relative quantities in a gas or solution or work with hydrate calculations
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning science (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about stoichiometry and chemical equations
- Students who struggle to understand their teachers
- Students who attend schools without extra science learning resources
How it works:
- 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 and Chemical Equations 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 and Chemical Equations chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any stoichiometry and chemical equations question. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students will review:
This chapter helps students review the concepts in a Stoichiometry and Chemical Equations unit of a standard AP chemistry course. Topics covered include:
- Chemical reactions and balancing chemical equations
- Mole-to-mole ratios and calculations of a chemical equation
- Mass-to-mass stoichiometric calculations
- Limiting reactants and calculating excess reactants
- Determining the chemical formula of hydrates from empirical data
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 about limiting and excess reactants and how to determine which reactant is the limiting one in a chemical reaction when given the amount of each reactant, and also 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.
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Other chapters within the AP Chemistry: Help and Review course
- AP Chemistry: Experimental Laboratory Chemistry: Help and Review
- AP Chemistry: Properties of Matter: Help and Review
- AP Chemistry: Atomic Structure: Help and Review
- AP Chemistry: The Periodic Table of Elements: Help and Review
- AP Chemistry: Nuclear Chemistry: Help and Review
- AP Chemistry: Bonding: Help and Review
- AP Chemistry: Phase Changes for Liquids and Solids: Help and Review
- AP Chemistry: Gases: Help and Review
- AP Chemistry: Solutions: Help and Review
- AP Chemistry: Acids, Bases and Chemical Reactions: Help and Review
- AP Chemistry: Equilibrium: Help and Review
- AP Chemistry: Kinetics: Help and Review
- AP Chemistry: Thermodynamics: Help and Review
- AP Chemistry: Organic Chemistry: Help and Review
- Portions of the AP Chemistry Exam: Help and Review