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Ch 4: NES General Science: The Mole Concept

About This Chapter

As you study for the NES General Science exam, you can use this chapter to study for questions related to the concept of a mole and how it is used to assess the quantity of atoms in a sample.

NES General Science: The Mole Concept - Chapter Summary

This chapter is a review of the mole and how it is used to calculate the number of atoms in a sample, the volume of a sample and the mass of a sample. In these videos, our expert instructors will discuss topics you may find on the National Evaluation Series (NES) General Science related to:

  • Avogadro's number and counting atoms
  • Calculations for molar volume
  • Formulas used to find molar mass

These lesson videos are mobile device friendly so that you have a versatile way of studying mole concepts. In addition to these videos, you can read over the lesson transcripts that present the same material as the videos but are written overviews that identify the key vocabulary. After these lessons, test your understanding of the material presented by taking the lesson quizzes.

NES General Science: The Mole Concept Chapter Objectives

The NES General Science assessment is a computer-based certification exam used to certify science teachers. In this exam, you will be asked to complete a series of 150 multiple-choice questions within a 180-minute testing session. When studying for this exam, use this chapter to prepare question on the mole concept. These questions would be found within the Physical Science domain area, which makes up 37% of the test.

5 Lessons in Chapter 4: NES General Science: The Mole Concept
Test your knowledge with a 30-question chapter practice test
Avogadro's Number: Using the Mole to Count Atoms

1. Avogadro's Number: Using the Mole to Count Atoms

How do we move from the atomic world to the regular world? Because atoms are so tiny, how can we count and measure them? And what do chemists celebrate at 6:02 AM on October 23rd each year? In this lesson, you will be learning how Avogadro's number and the mole can answer these questions.

Chemical Reactions and Balancing Chemical Equations

2. 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.

Mole-to-Mole Ratios and Calculations of a Chemical Equation

3. 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.

Stoichiometry: Calculating Relative Quantities in a Gas or Solution

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.

Mass-to-Mass Stoichiometric Calculations

5. 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.

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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