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Gas Laws
Read the Fine Print
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In this activity, students study gas laws at a molecular level. They vary the volume of a container at constant temperature to see how pressure changes (Boyle's Law), change the temperature of a container at constant pressure to see how the volume changes with temperature (Charles’s Law), and experiment with heating a gas in a closed container to discover how pressure changes with temperature (Gay Lussac's Law). They also discover the relationship between the number of gas molecules and gas volume (Avogadro's Law). Finally, students use their knowledge of gas laws to model a heated soda can collapsing as it is plunged into ice water.

Subject:
Chemistry
Education
Geoscience
Physical Science
Physics
Material Type:
Data Set
Diagram/Illustration
Interactive
Lecture Notes
Provider:
Concord Consortium
Provider Set:
Concord Consortium Collection
Author:
The Concord Consortium
Date Added:
12/11/2011
How Big Is a Mole? Do We Really Comprehend Avogadro’s Number?
Conditional Remix & Share Permitted
CC BY-NC-SA
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The unit “mole” is used in chemistry as a counting unit for measuring the amount of something. One mole of something has 6.02×1023 units of that thing. The magnitude of the number 6.02×1023 is challenging to imagine. The goal of this lesson is for students to understand just how many particles Avogadro's Number truly represents, or, how big is a mole. This lesson is meant for students currently enrolled in a first or second year chemistry course. This lesson is designed to be completed within one approximately 1 hour class; however, completion of optional activities 4 and 5 may require a longer class period or part of a second class period. This lesson requires only pencil and paper, as the activities suggested in this video place an emphasis on helping students develop their “back of the envelope” estimation skills. In fact, calculators and other measuring devices are explicitly discouraged. However, students may require additional supplies (poster board, colored pencils, markers, crayons, etc.) for the final optional/assessment activity, which involves creating a poster to demonstrate the size of a mole of their favorite macroscopic object.

Subject:
Chemistry
Physical Science
Material Type:
Lecture
Provider:
MIT
Provider Set:
MIT Blossoms
Author:
Dr. Jessica Silverman, Alan D. Crosby
Date Added:
02/12/2015
Introduction to Solid-State Chemistry
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this course, we will explore what makes things in the world the way they are and why, to understand the science and consider the engineering. We learn not only why the physical world behaves the way it does, but also how to think with chemical intuition, which can’t be gained simply by observing the macroscopic world.
This 2018 version of 3.091 by Jeffrey Grossman and the 2010 OCW version by Don Sadoway cover similar topics and both provide complete learning materials. This 2018 version also includes Jeffrey Grossman’s innovative Goodie Bags, Why This Matters, and CHEMATLAS content, as well as additional practice problems, quizzes, and exams.

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Full Course
Provider:
MIT
Provider Set:
MIT OpenCourseWare
Author:
Grossman, Jeffrey
Date Added:
09/01/2018
Mini-Mods: General Chemistry - Moles
Only Sharing Permitted
CC BY-NC-ND
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Learning modules that describe how to convert between number of molecules, moles and mass, for students in General Chemistry.

Subject:
Physical Science
Material Type:
Module
Date Added:
07/20/2016