About This Chapter
Praxis Chemistry: Stoichiometric Calculations - Chapter Summary
Stoichiometric calculations may be difficult to master, but this chapter breaks the material down into six, focused lessons. In this Praxis Chemistry: Stoichiometric Calculations chapter, you can refine your skills by studying the following topics:
- Chemical reactions and balancing chemical equations
- Mole-to-mole ratios
- Mass-to-mass stoichiometric calculations
- Limiting reactants and calculating excess reactants
- Calculating reaction yield and percentage yield from a limiting reactant
Concepts are explained in a fun and accessible way. When you pair your hands-on scientific experience with testing-strategy instruction, you can acquire the tools needed to achieve your goals on exam day.
Praxis Chemistry: Stoichiometric Calculations Objectives
Tests in the Praxis series are usually taken by people applying for a teaching license. The intention behind the Praxis Chemistry Content Knowledge test is to determine how comfortable you are with the material typically taught in secondary school chemistry. Before taking the test, people often study chemistry and education at least at the undergraduate level.
The topic of stoichiometric calculations is included in the Periodicity and Reactivity; Chemical Reactions, Biochemistry and Organic Chemistry category of the test. This section includes 23 of the Praxis Chemistry Content Knowledge exam's 100 multiple choice questions. You can build your confidence with the format of the questions you'll see on the actual exam when you take the self-assessment quizzes in this chapter.
1. Chemical Reactions and Balancing Chemical Equations
The conservation of matter law enables scientists to balance a chemical equation. Explore the steps in balancing chemical equations, review chemical reactions, and use balanced chemical equations to show that matter is conserved.
2. Mole-to-Mole Ratios and Calculations of a Chemical Equation
In a chemical reaction, a mole ratio refers to a conversion factor that shows the ratio between mole amounts of any two compounds or substances involved in the reaction. Learn about mole-to-mole ratios, explore their role in the calculations of a chemical equation, and discover what this has to do with stoichiometry.
3. Mass-to-Mass Stoichiometric Calculations
Moles and mass are commonly used to express the amount of substances in stoichiometric calculations. Learn how to use equations and ratios to calculate moles to mass, moles to moles, mass to moles, or mass to mass in stoichiometric calculations.
4. Stoichiometry: Calculating Relative Quantities in a Gas or Solution
Stoichiometry is the study of relative quantities in substances that undergo physical or chemical changes. Learn about stoichiometry of gases, molar volume, solutions, and how to use the four-step process to calculate relative quantities in a gas or solution.
5. Limiting Reactants & Calculating Excess Reactants
Chemical reactions can have too much of some reactants and too little of others. Learn how to identify limiting reactants, explore the equations to calculate excess reactants, and understand how to change the reactants' masses to moles.
6. Calculating Reaction Yield and Percentage Yield from a Limiting Reactant
In chemical reactions, limiting reactants refers to substances that are consumed in their entirety. Learn about theoretical and actual yields, and understand how to calculate reaction yield and percentage yield from a limiting reactant.
7. Dehydration Reaction: Definition & Examples
A dehydration reaction is a chemical reaction in which a reactant loses a water molecule. Explore the definition and examples of a dehydration reaction and discover the difference between dehydration and condensation.
8. Neutralization Reaction: Definition, Equation & Examples
Neutralization is a chemical reaction through which water and salt are formed as the result of a strong acid and strong base coming together. Learn about the net ionic equation, review examples of weak acids and bases, and explore the definition and common applications of the neutralization process.
9. Decomposition and Synthesis Reactions
Elements and compounds multiply and new compounds form through the processes of decomposition and synthesis reactions. Learn about these reactions, understand how they occur, and explore their equations.
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Other chapters within the Praxis Chemistry: Content Knowledge (5245): Practice & Study Guide course
- About the Praxis Chemistry Test
- Praxis Chemistry: Matter and Energy
- Praxis Chemistry: Thermodynamics
- Properties of Liquids & Solids
- Praxis Chemistry: Gases
- Praxis Chemistry: Atomic Structure
- Praxis Chemistry: Nuclear Structure
- Praxis Chemistry: Nomenclature and Chemical Composition
- Praxis Chemistry: Bonding
- Praxis Chemistry: Periodicity
- Praxis Chemistry: Chemical Reactions & Kinetics
- Praxis Chemistry: Chemical Reaction Equilibrium
- Praxis Chemistry: Biochemistry
- Praxis Chemistry: Solutions & Solubility
- Praxis Chemistry: Acid-Base Chemistry
- Praxis Chemistry: Scientific Inquiry & Experimental Design
- Praxis Chemistry: Math, Measurement & Data Management in Chemistry
- Praxis Chemistry: Lab Procedures & Safety in Chemistry
- Praxis Chemistry: Overview of Environmental Chemistry
- Praxis Chemistry Flashcards