Ch 18: Holt McDougal Modern Chemistry Chapter 18: Chemical Equilibrium

About This Chapter

The Chemical Equilibrium chapter of this Holt McDougal Modern Chemistry Companion Course helps students learn the essential lessons associated with chemical equilibrium. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Chemical Equilibrium textbook chapter.

How It Works:

  • Identify the lessons in the Holt McDougal Chemical Equilibrium chapter with which you need help.
  • Find the corresponding video lessons within this companion course chapter.
  • Watch fun videos that cover the chemical equilibrium topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Biochemical reactions
  • Dynamic and chemical equilibrium
  • The equilibrium constant and reaction quotient
  • LeChatelier's principle
  • Selective precipitation and common ion effect
  • Acid-base buffers
  • Cation hydrolysis along with anion hydrolysis
  • Acid-base reaction hydrolysis
  • Solubility equilibrium

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9 Lessons in Chapter 18: Holt McDougal Modern Chemistry Chapter 18: Chemical Equilibrium
Test your knowledge with a 30-question chapter practice test
Biochemical Reactions: Synthesis and Decomposition

1. Biochemical Reactions: Synthesis and Decomposition

Did you know that there are thousands of chemical reactions going on in your body every day? In this lesson, you will learn about three types of biochemical reactions: synthesis reactions, decomposition reactions and reversible reactions.

Equilibrium: Chemical and Dynamic

2. Equilibrium: Chemical and Dynamic

Learn the definition of chemical equilibrium and how it is dynamic. Discover what the equilibrium constant is and how it shows whether the reaction favors the reactants or products. Learn how chemists designate equilibrium in an equation and how they show the difference in reaction rate.

Equilibrium Constant (K) and Reaction Quotient (Q)

3. Equilibrium Constant (K) and Reaction Quotient (Q)

In this lesson, we will first define and explain the notion of a chemical equilibrium. Then, you'll learn about the equilibrium constant and reaction quotient. Finally, we'll round off the lesson with a couple of examples to solidify what you've learned!

LeChatelier's Principle: Disruption and Re-Establishment of Equilibrium

4. LeChatelier's Principle: Disruption and Re-Establishment of Equilibrium

Learn how Le Chatelier's Principle describes the disruption and re-establishment of equilibrium. Learn to explain the factors that disrupt equilibrium, such as concentration, temperature, and pressure. Learn how each of these factors affects a system in equilibrium.

The Common Ion Effect and Selective Precipitation

5. The Common Ion Effect and Selective Precipitation

Learn what the common ion effect is, how to make equilibrium calculations involving it, and how to find the concentrations of ions when adding reactions in equilibrium to solutions that already contain ions.

Acid-Base Buffers: Calculating the pH of a Buffered Solution

6. Acid-Base Buffers: Calculating the pH of a Buffered Solution

Learn what a buffer is, how it works, and why we benefit from having our blood buffered. Learn how to calculate the pH of a buffered solution before an acid or base is added and how the pH changes after an acid or base is added.

Solubility Equilibrium: Using a Solubility Constant (Ksp) in Calculations

7. Solubility Equilibrium: Using a Solubility Constant (Ksp) in Calculations

Learn the definition of solubility and solubility constant (Ksp) in this lesson. Interpret solubility constants and make calculations involving the dissociation of a slightly soluble compound given molar solubility.

Cation & Anion Hydrolysis

8. Cation & Anion Hydrolysis

Hydrolysis is a reaction that contains water. Depending on the anions and cations present within a hydrolysis reaction, the solution can be more basic or acidic. This lesson will explain how this occurs.

Hydrolysis in Acid-Base Reactions

9. Hydrolysis in Acid-Base Reactions

Hydyolysis is the use of water to break apart molecules, in this lesson, you'll learn how water reacts in acidic and basic reactions to create important molecules.

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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