Lesson+7

Grade Level:  11

Unit:  Chemistry

Lesson Objectives (include 4 or 5): Student will understand  Student will be able to  Time Required to complete this lesson:  Several lab periods
 * The properties of polar and non-polar solvents and solutes.
 * How polarity (or lack thereof) is affected by molecular structure.
 * How the presence of a solute affects the freezing and boiling points of a solvent.
 * How temperature affects solubility.
 * Perform experiments in the lab related to the above factors.

Title of lesson:  Chemistry of solutions Description of lesson (if you were to describe to a parent what was happening in the classroom for this lesson, what would you say in 3-5 sentences).  This will be a series of lab exercises related to solutions chemistry. Students will learn how to distinguish polar and non-polar compounds by attempting to form solutions with them. They will analyze how the boiling point of a solution changes in comparision to an equivalent solvent without a solute. Finally, they will test how the saturation point of a solution changes with temperature.

Assignment (homework or in-class: this is how the learner will practice the learning that has just occurred):  Lab exercises

Resources/materials needed:  Various solvent and solute compounds, laboratory glassware, thermometers, laboratory scales, heating elements, video of Mark Rosengarten's solutions and solubility lecture on my Top 11 Science videos playlist accessible from the link on the Science Theater page. The hyperlink to Video 10 (also by Rosengarten) on the Top 11 Science Videos page (accessible from a link on the Science Theater page) also relates somewhat to this lesson

Technology used:  The use of computer technology is not required for these lab exercises although Power Point slides can be used to help students understand how polarity relates to molecular structure. Videos showing lab procedures may also be helpful.

The technology used in this lesson changes the teaching / learning in this way: Reinforces understanding of solutions concepts and of lab procedures. The Mark Rosengarten video lecture and music video can be accessed from any computer.