Ch 51: Acids and Bases Overview

About This Chapter

Brush up your physical sciences knowledge by reviewing acids and bases. Watch video lessons and use quizzes to assess your progress as you prepare for the Medical College Admission Test (MCAT).

MCAT: Acids and Bases Overview - Chapter Summary

Add to and refresh your knowledge of acids and bases by watching video lessons as you review for the MCAT. The video lessons in the Acids and Bases Overview chapter cover:

  • Acid-base buffers: calculating the pH of a buffered solution
  • Acid-base equilibrium: calculating the Ka or Kb of a solution
  • Conjugate acids and bases
  • Ionization of water
  • Strong acids and bases
  • The Bronsted-Lowry and Lewis definition of acids and bases
  • Titration curves and calculating pH during titration
  • Titration of a strong acid or a strong base
  • Weak acids, weak bases and buffers

The video lessons in the Acids and Bases Overview chapter help you understand the basic concepts and vocabulary terms you'll need for this portion of the MCAT. Reviewing with these videos makes the lesson easy to understand, with simple, everyday examples and can even be enjoyable.

MCAT: Acids and Bases Overview - Chapter Objectives

You'll need to know organic chemistry, general chemistry, physics and biology concepts for the MCAT, which tests your readiness for medical school. Physical sciences questions make up one-fourth of the MCAT. The other three sections are biological sciences, verbal reasoning and the trial section.

The physical sciences section has 52 questions, and you'll be given 70 minutes to answer them. The acids and bases questions cover such subjects as:

  • Common buffer systems
  • Common examples of strong and weak acids and bases
  • Neutralization
  • The definition of pH
  • The definition of pure water
  • Titration indicators

All of the questions on the MCAT are multiple choice. Every video lesson comes with a multiple-choice self-assessment quiz to help you keep track of how well you've learned the main ideas in the lesson. These quiz questions help you gain experience with the types of questions you'll see on the MCAT.

10 Lessons in Chapter 51: Acids and Bases Overview
Test your knowledge with a 30-question chapter practice test
Acids and Bases

1. Acids and Bases

Have you ever wondered how we measure the acidity of liquids? Check out this lesson to see how acids and bases are measured on a pH scale and how they relate to neutral solutions, such as water.

The Bronsted-Lowry and Lewis Definition of Acids and Bases

2. The Bronsted-Lowry and Lewis Definition of Acids and Bases

Learn the Bronsted-Lowry and Lewis definitions of an acid and base. Discover how these theories differ from each other and from the Arrhenius theory of an acid and base. Learn how to identify an acid in terms of proton donation and a base as a proton acceptor, and explain what a conjugate acid or base is.

The Arrhenius Definition of Acids and Bases

3. The Arrhenius Definition of Acids and Bases

In this lesson, you will learn the definition of Arrhenius acids and bases, discover some of their chemical properties and learn some examples. You will also learn about the difference between strong and weak Arrhenius acids and bases.

Neutralization and Acid-Base Reactions

4. Neutralization and Acid-Base Reactions

From this lesson, you will understand the neutralization process between acids and bases. Learn how a hydroxide ion from a base reacts with a hydronium ion from an acid to neutralize each other and form water. Discover what conjugate acids and bases are and what the definition of amphoteric is.

Dissociation Constant and Autoionization of Water

5. Dissociation Constant and Autoionization of Water

Learn the meaning of auto-ionization of water, sometimes called self-ionization, where water acts as a proton donor and acceptor to form both hydronium and hydroxide ions. Learn what the auto-ionization constant is and how to use it to determine the concentration of either hydroxide or hydronium ions in a solution when given the other value.

Weak Acids, Weak Bases, and Buffers

6. Weak Acids, Weak Bases, and Buffers

This lesson covers both strong and weak acids and bases, using human blood as an example for the discussion. Other concepts discussed included conjugate acids and bases, the acidity constant, and buffer systems within the blood.

Acid-Base Equilibrium: Calculating the Ka or Kb of a Solution

7. Acid-Base Equilibrium: Calculating the Ka or Kb of a Solution

In this lesson, you will review acid and base strength and acid and base dissociation. You will then learn what acid and base dissociation constants (Ka and Kb) are, what they mean, and how to perform calculations involving them.

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

8. 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.

Titration of a Strong Acid or a Strong Base

9. Titration of a Strong Acid or a Strong Base

Discover what titration is and how to calculate the concentration of an acid or base that has been titrated to equivalence. Learn the meaning of titrant, standard solution and equivalence point. Study titration curves and learn how to determine pH during any point of a titration between a strong acid and strong base.

Titrations with Weak Acids or Weak Bases

10. Titrations with Weak Acids or Weak Bases

Learn about titrations with weak acids or weak bases in this lesson. Study their titration curves and learn about some of their important characteristics. Learn how to calculate pH during titrations involving weak acids and strong bases.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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