About This Chapter
Virginia SOL Chemistry: Molar Relationships- Chapter Summary
You can refresh your understanding of molar relationships by reviewing the lessons contained within this chapter. All of the topics covered may be needed for the Virginia SOL Exam on Chemistry. These lessons explain important points related to the subject, such as:
- Molar volume
- Mass-to-mass stoichiometric calculations
- Calculating molarity
- Calculating the dilution of solutions
- Acid-based indicators
- The pH scale
- Titrations of acids and bases
You can use the practice quiz questions to assess your understanding of these topics and see where you need additional study. Preparing for the Virginia SOL Exam will be much, much easier if you use the resources that we provide you!
1. Molar Volume: Using Avogadro's Law to Calculate the Quantity or Volume of a Gas
Have you ever wondered why a balloon expands when you blow it up? How something as light as air is able to exert a force large enough to inflate a balloon? In this lesson, you will learn about the relationship between the volume of a container filled with a gas and the number of gas particles that container holds. This relationship is known as Avogadro's Law.
2. 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.
3. Solutions, Electrolytes and Nonelectrolytes
Learn what a solution is and how it is formed. Learn how to express the concentration of a solution in terms of molarity, molality and mass percent. Discover the differences between an electrolyte and a nonelectrolyte.
4. Calculating Molarity and Molality Concentration
Learn the abbreviations and meaning of molarity and molality. Then apply what you have learned by going over some sample calculations with given concentrations.
5. Calculating Dilution of Solutions
Learn what a solution is and how to properly dilute a new solution from a stock solution. Learn the dilution equation that combines molarity, the volume of stock solution and desired solution to determine how much stock solution is needed for the new solution.
6. 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.
7. Acid-Base Indicator: Definition & Concept
Blue, orange, yellow, and red are just some of the colors you may see when testing a solution using an acid-base indicator. Continue reading to learn about acid-base indicators and how the process works.
8. 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.
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.
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.
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Other chapters within the Virginia SOL - Chemistry: Test Prep & Practice course
- Virginia SOL - Chemistry: Laboratory Safety
- Virginia SOL - Chemistry: Experiments & Data
- Virginia SOL - Chemistry: Basic Concepts
- Virginia SOL - Chemistry: Periodic Table
- Virginia SOL - Chemistry: Historical & Quantum Models
- Virginia SOL - Chemistry: Chemical Formulas & Equations
- Virginia SOL - Chemistry: Gas Laws & Phase Changes
- Virginia SOL - Chemistry: Organic Chemistry & Biochemistry
- Virginia SOL - Chemistry Flashcards