About This Chapter
Overview of Chemical Solutions - Chapter Summary
These engaging and informative video lessons expand on and/or reinforce in-class lessons your middle school student has received. Lessons describe the basic principles of various aspects of chemical solutions from simple processes, like mixing and dilution, to more complex concepts, such as colligative properties and molarity. The lessons also teach the necessary mathematical tools to accompany these studies. Check your student's understanding of the material with short quizzes that accompany each lesson, and use the chapter exam to gauge retention and synthesis of chemical solutions concepts.
Chapter Lessons and Objectives
|Polar Molecule: Definition and Examples||Students will learn how to identify polar and non-polar molecules by analyzing the bonds between their constituent atoms.|
|Solutions, Electrolytes and Nonelectrolytes||Instructors teach basic principles of solutions and the properties of both ionic solutes (electrolytes) and non-ionic solutes (non-electrolytes).|
|Solubility and Solubility Curves||In this lesson, students are taught how much of a given solvent can be dissolved in a given solution (solubility) and the relationship of solubility to temperature.|
|Dissolved Gas: Process and Examples||Students are presented information on how gases dissolve along with examples from the natural environment to support the concepts.|
|Dissolving Liquids: Process and Examples||Instructors provide information on the dissolution of liquids and examples of the process from real life.|
|Calculating Molarity and Molality Concentration||Students learn to calculate molar concentration in solutions by determining the number of moles per liter of solution or per kilogram of solvent.|
|Calculating Dilution of Solutions||This lesson helps students learn to calculate dilution using the law of conservation of mass along with the given molarity and volume of the component solutions.|
|Colligative Properties and Raoult's Law||Instruction presented in this lesson discusses the properties of solutions which rely on molarity and how vapor pressure and the mole fraction of solvents relate to the vapor pressure of a solution.|
|Using Colligative Properties to Determine Molar Mass||Students learn to calculate the mass of molecules within a solution through boiling point elevation and freezing point depression.|
|Facts about Water Molecules: Structure, Properties & Quiz||Instructors present information regarding water molecules, the properties of which are crucial to understand in the study of chemistry.|
|Dissociation Constant and Autoionization of Water||With this lesson, students learn about the dissociative properties of various complexes and molecules, including how two water molecules can share protons and dissociate into a base and acid.|
|Using Chemical Reactions to Identify Substances||Students learn to use the chemical and solvent properties of various substances to identify unknown substances using known solutions.|
1. Polar Molecule: Definition & Examples
In this lesson, you will learn about polar molecules. A few polar molecules will be discussed to describe the process of determining polarity. Finally, a test of your knowledge will be performed.
2. 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.
3. Solubility and Solubility Curves
Learn what solubility is as well as the definitions of 'saturated,' 'unsaturated' and 'supersaturated.' Learn how to determine the solubility of a substance in water by using a solubility curve. Discover the effects of pressure and temperature on the solubility of liquids, solids and gases.
4. Dissolved Gas: Process & Examples
How and why do we dissolve gas into other materials? In this lesson, explore the principles and process of dissolving gas and discover some of the common uses for this technique. Then, test your understanding with a brief quiz.
5. Dissolving Liquids: Process & Examples
After watching this video lesson, you will understand how liquids dissolve into another liquid. You will also learn that not all liquids can dissolve into each other. You will learn why this is so.
6. 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.
7. 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.
8. Colligative Properties and Raoult's Law
Learn how vapor pressure and osmotic pressure are colligative properties. Learn Raoult's Law and how to use it to determine the vapor pressure of a solution. Learn the equation for determining osmotic pressure and how to use it to determine the molar mass of a substance.
9. Using Colligative Properties to Determine Molar Mass
In this lesson, we will explore the effect of colligative properties on a solution. We will learn how to calculate freezing point depression and see how it can be used to calculate the molar mass of an unknown substance.
10. Facts About Water Molecules: Structure & Properties
Water is more unique than you might think, despite the huge quantities available on our planet. This lesson explores the structure of water and how it contributes to the properties we find so useful.
11. 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.
12. Using Chemical Reactions to Identify Substances
While many household substances look similar, a quick chemical reaction can show just how different they are. In this lesson, we learn how to identify some common household substances using reactions.
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Other chapters within the Chemistry: Middle School course