About This Chapter
MTTC Physical Science: Stoichiometry - Chapter Summary
When it comes to stoichiometry, there are many steps, rules, and symbols to remember, but these lessons can get your memory on track. Prepare for solving stoichiometric equations on the MTTC Physical Science exam by delving into these topics:
- Balancing chemical equations
- Exergonic and endergonic reactions
- Mass-to-mass and mole-to-mole calculations
- Calculating reactants
- Hydrates and precipitation reactions
- The law of conservation of mass
- Chemical nomenclature
Stoichiometry can prove difficult, since there are so many steps involved and calculation processes to perform. This chapter can give you the type of rundown you'll need to put you in a better position for the MTTC Physical Science exam. First of all, you can't teach a subject like this without using examples, and our instructors tend to use very relevant and familiar examples. If you didn't catch everything the first time through a lesson, you can watch it again until you get it. You can also read the transcripts to see the vocabulary word definitions as well as the chemical formulas.
1. Chemical Nomenclature & Notation
Subscripts, superscripts, symbols and coefficients can make your head spin. This lesson will straighten everything out for you so you can be proficient in the world of chemistry.
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. Basic Properties of Chemical Reactions
Learn how about the various components of a chemical reaction, and how those components function. Use this lesson to understand the basic properties of different kinds of chemical reactions.
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.
6. 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.
7. 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.
8. 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.
9. Limiting Reactants & Calculating Excess Reactants
In this lesson, you'll learn what limiting reactant and excess reactant mean and how to determine which reactant is limiting in a chemical reaction when given the amount of each reactant. You'll also discover how to calculate the amount of product produced.
10. Calculating Reaction Yield and Percentage Yield from a Limiting Reactant
Learn what the theoretical yield, actual yield and percent yield are. Given the limiting reactant, learn how to calculate the theoretical reaction yield, which is also known as the ideal reaction yield and percentage yield.
11. Calculating Percent Composition and Determining Empirical Formulas
Learn the difference between the empirical formula and chemical formula. Learn how to calculate the percent composition of an element in a compound. Learn how, if given a percent composition, to determine the empirical formula for a compound.
12. Hydrates: Determining the Chemical Formula From Empirical Data
Learn the definition of a hydrate and an anhydrate in this lesson. Discover how, when given experimental data, you can determine the formula of a hydrate by following simple steps that include finding the moles of hydrate and anhydrate and comparing the two to write the formula.
13. Precipitation Reactions: Predicting Precipitates and Net Ionic Equations
Learn what a precipitate is and predict when it will form in an aqueous chemical reaction, usually a double-replacement reaction. Learn what an ionic equation is, how it differs from a net ionic equation and how to write a net ionic equation.
14. The Law of Conservation of Mass: Definition, Equation & Examples
Read about the law of conservation of mass, its role in chemistry, and its importance in the universe. Learn the equation, review examples, and test your knowledge of the material with a short quiz.
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Other chapters within the MTTC Physical Science (097): Practice & Study Guide course
- MTTC Physical Science: Scientific Inquiry
- MTTC Physical Science: Conducting Research
- MTTC Physical Science: Interpreting Data
- MTTC Physical Science: Laboratory Safety
- MTTC Physical Science: Society & Scientific Progress
- MTTC Physical Science: Interdisciplinary Science
- MTTC Physical Science: Chemical Properties of Matter
- MTTC Physical Science: Physical Properties of Matter
- MTTC Physical Science: Chemical Bonds
- MTTC Physical Science: Chemical Reactions
- MTTC Physical Science: Analytical Techniques
- MTTC Physical Science: Forces & Motion
- MTTC Physical Science: Work, Power & Energy
- MTTC Physical Science: Conservation Laws & Thermodynamics
- MTTC Physical Science: Waves & Wave Motion
- MTTC Physical Science: Electromagnetism
- MTTC Physical Science: Electromagnetic Waves & Spectrum
- MTTC Physical Science: Modern Physics
- MTTC Physical Science Flashcards