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 Praxis General Science (5435): Practice & Study Guide
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Ch 14: Praxis General Science: Acid-Base Chemistry

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About This Chapter

This chapter focuses on the acid-base chemistry concepts that you may encounter on the Praxis General Science exam. Prepare for this exam with thorough and easy-to-follow video lessons that walk you through each pertinent topic.

Praxis General Science: Acid-Base Chemistry - Chapter Summary

Through a series of engaging videos, the lessons in this chapter look at various definitions, solutions, calculations and principles of acid-base chemistry to help you make sure you're familiar with all of the related concepts brought up in on the Praxis General Science exam. By the end of this chapter, you'll have reviewed:

  • The Arrhenius, Bronsted-Lowry and Lewis definitions of acids and bases
  • Neutralization process and acid-base reactions
  • Dissociation constants
  • Acidic, basic and neutral solutions
  • The pH scale
  • Acid and base anhydrides
  • Coordination chemistry and precipitation reactions
  • Acid base buffers and equilibrium

The detailed yet efficient nature of each lesson will let you go through the subjects at your own speed and choose how much to review any given topic. Having control over these factors will allow you to focus on the subjects you're most anxious about being tested on, boosting your confidence going into the exam.

Praxis General Science: Acid-Base Chemistry Chapter Objectives

The Praxis General Science test is a computer-based exam that measures your scientific comprehension and teaching ability. The test is made up of 135 multiple choice questions and you are allowed 2.5 hours to complete. This chapter will be helpful during your studying for the physical science portion of the exam, which includes a set of questions on acid-base chemistry. In whole the physical science section of the exam is comprised of 51 questions constituting 38% of your final score on the exam.

11 Lessons in Chapter 14: Praxis General Science: Acid-Base Chemistry
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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.
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.
Neutralization and Acid-Base Reactions

3. 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

4. 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.
Acidic, Basic & Neutral Solutions: Determining pH

5. Acidic, Basic & Neutral Solutions: Determining pH

After watching this video, you will be able to explain the difference between acidic, basic, and neutral solutions and explain the concept of pH. A short quiz will follow.
The pH Scale: Calculating the pH of a Solution

6. 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.
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.
Coordination Chemistry: Bonding in Coordinated Compounds

8. Coordination Chemistry: Bonding in Coordinated Compounds

Discover what a coordinated compound is. Understand how bonding occurs in coordinated compounds and some of the possible shapes coordinated compounds can be. Learn the uses in nature and industry for coordinated compounds.
Precipitation Reactions: Predicting Precipitates and Net Ionic Equations

9. Precipitation Reactions: Predicting Precipitates and Net Ionic Equations

Learn what a precipitate is and predict when it will form in an aqueous chemical reaction, usually a double-replacement reaction. Learn what an ionic equation is, how it differs from a net ionic equation and how to write a net ionic equation.
Acid-Base Equilibrium: Calculating the Ka or Kb of a Solution

10. 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

11. 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.
Chapter Practice Exam
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Practice Final Exam
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