About This Chapter
NYSTCE Chemistry: Chemical Equilibrium - Chapter Summary
Review your knowledge of LeChatelier's Principle, acid-base equilibrium calculations and more by working through the lessons in this chapter. As you get ready to answer questions on the NYSTCE Chemistry exam, you can study the following information:
- Explanation of LeChatelier's Principle and equilibrium
- How to use a RICE table to calculate equilibrium
- How to use a solubility constant to calculate solubility equilibrium
- Explanation of selective precipitation and the common ion effect
- Acid-base buffers and acid-base equilibrium calculations
- Explanation of titration
These lessons offer you maximum information in a convenient, easy to transport form. Any electronic device that can connect you to the Internet can connect you to this study guide, so you can work from a laptop, notebook, tablet or smartphone in any location that provides online access. Measure your progress using our quizzes and chapter tests, and keep track of your work on your dashboard.
NYSTCE Chemistry: Chemical Equilibrium Chapter Objectives
The NYSTCE Chemistry exam is part of the battery of exams required for teacher certification in the state of New York. These tests are objective-based and criterion-referenced. The NYSTCE Chemistry exam contains six subareas from which the multiple-choice questions are drawn, and one that forms the basis for the constructed-response assignment required by the test. The lessons in this chapter align with Subarea IV: Chemical Reactions. Subarea IV accounts for approximately 16% of the exam.
You will find 90 multiple-choice questions on this computer-based exam, and one for which you must compose a written answer in response to a given topic. Your constructed-response answer must fall within the length requirements of 150 to 300 words.
1. LeChatelier's Principle: Disruption and Re-Establishment of Equilibrium
Learn how Le Chatelier's Principle describes the disruption and re-establishment of equilibrium. Learn to explain the factors that disrupt equilibrium, such as concentration, temperature, and pressure. Learn how each of these factors affects a system in equilibrium.
2. Using a RICE Table in Equilibrium Calculations
Learn what the RICE table is and how to fill in the table with the reaction, initial concentration, change in concentration and amount of product and reactants at equilibrium. Learn how to use the RICE table to calculate the concentrations and amounts and the equilibrium constant of equations at equilibrium.
3. Solubility Equilibrium: Using a Solubility Constant (Ksp) in Calculations
Learn the definition of solubility and solubility constant (Ksp) in this lesson. Interpret solubility constants and make calculations involving the dissociation of a slightly soluble compound given molar solubility.
4. The Common Ion Effect and Selective Precipitation
Learn what the common ion effect is, how to make equilibrium calculations involving it, and how to find the concentrations of ions when adding reactions in equilibrium to solutions that already contain ions.
5. 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.
6. 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.
7. 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.
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Other chapters within the NYSTCE Chemistry (007): Practice and Study Guide course
- NYSTCE Chemistry: Foundations of Scientific Inquiry
- NYSTCE Chemistry: Physical & Chemical Properties
- NYSTCE Chemistry: Atomic Structure & Quantum Theory
- NYSTCE Chemistry: The Periodic Table
- NYSTCE Chemistry: Gases
- NYSTCE Chemistry: Nuclear Transformation
- NYSTCE Chemistry: Principles of Calorimetry
- NYSTCE Chemistry: Thermodynamics
- NYSTCE Chemistry: Chemical Bonds
- NYSTCE Chemistry: Chemical Reactions
- NYSTCE Chemistry: Acid-Base Chemistry
- NYSTCE Chemistry: Stoichiometry
- NYSTCE Chemistry: Solutions & Solubility
- NYSTCE Chemistry: Nuclear Reactions
- NYSTCE Chemistry: Chemicals & the Environment
- NYSTCE Chemistry Flashcards