Ch 12: ORELA Chemistry: Acids & Bases

About This Chapter

You'll need to be familiar with acids and bases when you sit for the ORELA Chemistry examination. If there are aspects of the subject in which you need further study, look to this chapter and its educational video lessons for guidance.

ORELA Chemistry: Acids & Bases - Chapter Summary

This chapter is designed to teach the definitions of acids and bases and explain the ways in which they're measured. Prepare for the ORELA Chemistry examination by watching online video lessons on the origins of the pH scale as well as titration and neutralization processes. You'll examine some of the key differences between strong and weak acids and bases, and learn more about acidic and basic salt solutions. These videos could assist you with:

  • Describing Arrhenius acids and bases
  • Understanding an acid-base reaction
  • Studying the auto-ionization of water
  • Learning to calculate the pH of acidic solutions as well as the Ka and Kb of a solution
  • Providing examples of acidic and salt solutions
  • Identifying weak acids and weak bases
  • Defining acid and base anhydrides
  • Calculating the pH of a buffered solution
  • Exploring titration and titration curves

These topics are all presented in this chapter's online video lessons, which are narrated by expert instructors. Receive personalized guidance when you submit your questions for clarification. Short and animated, the videos can be watched at your convenience as long as you have a Web-connected computer, laptop or tablet. The chapter includes written transcripts, worksheets and multiple-choice quizzes.

ORELA Chemistry: Acids & Bases - Chapter Objectives

The Chemical Reactions content domain of the ORELA Chemistry examination will assess your knowledge of acids and bases. When you reach this domain, which amounts to 23% of the entire score, you'll need a strong understanding of the applications of titrations, buffer solutions and hydroxide ion concentration. Your accurate answers to the 150 multiple-choice examination questions will be required in order to qualify for a chemistry teaching endorsement. You must complete the computer-based assessment in less than three hours and 45 minutes.

11 Lessons in Chapter 12: ORELA Chemistry: Acids & Bases
Test your knowledge with a 30-question chapter practice test
The Arrhenius Definition of Acids and Bases

1. 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

2. 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

3. 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.

The pH Scale: Calculating the pH of a Solution

4. The pH Scale: Calculating the pH of a Solution

Learn the history of the pH scale, how to describe it and why it is used by scientists. Discover how to calculate the pH of an acid or base solutions given either the hydroxide ion concentration or the hydronium ion concentration. Learn how to start with the pH and calculate the hydroxide and hydronium ion concentrations.

Acidic & Basic Salt Solutions: Explanation & Examples

5. Acidic & Basic Salt Solutions: Explanation & Examples

In this video lesson, you will learn how to tell if a salt solution is acidic, basic, or neutral. You will find out how to recognize the effect of individual ions in solution and how they can change the pH. A short quiz will test your knowledge.

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 Anhydrides: Definition & Examples

7. Acid & Base Anhydrides: Definition & Examples

In this video lesson, you will learn the definition and the types of anhydrides that form acids and bases in water. You will also discover where you can commonly find anhydrides and why they are important. A short quiz will test your knowledge.

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

8. 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

9. 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

10. 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.

Titration: Overview, Curves & Calculations

11. Titration: Overview, Curves & Calculations

Titrations are useful to determine the molarity of a sample or a compound in a sample. We will learn how to perform a titration and how to calculate the molarity of a sample based on the titration.

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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