About This Chapter
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.
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.
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.
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.
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.
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.
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Other chapters within the NES General Science (311): Practice & Study Guide course
- NES General Science: Scientific Inquiry
- NES General Science: Science & Society
- Chemical Formulas & Bonds
- NES General Science: Chemical Reactions
- NES General Science: Solutions & Solubility Factors
- Mechanical & Electromagnetic Waves
- Basics of Electricity & Magnetism
- Intro to Cellular Biology
- NES General Science: Traits of Living Organisms
- Principles of Genetics
- NES General Science: Evolution
- NES General Science: Ecosystems
- NES General Science: Rocks & Minerals
- NES General Science: Historical Geology
- NES General Science: Plate Tectonics
- Intro to Earth's Hydrosphere
- Basics of the Atmosphere, Weather & Climate
- Overview of the Solar System & Universe
- NES General Science Flashcards