The Floating Soap Bubble
Tom Kuntzleman | Mon, 08/21/2023 - 09:03
The floating soap bubble is an impressive experiment that is surprisingly easy to carry out.
molar mass
The Mole - A Free Virtual Chemistry Lab Activity
Josh Kenney | Wed, 10/14/2020 - 09:08
In this activity, students learn about the mole. In section 1, students learn what a mole looks like for different substances. In section 2, students learn how the number of protons and neutrons in the nucleus determines the molar mass of an element by comparing individual isotopes in a PhET simulation..
Chemistry Experiments with the Flame Tube
Tom Kuntzleman | Tue, 05/26/2020 - 12:37
The Ruben's Tube (also known as a Flame Tube) is a classic experiment used in physics classes. There's also a bit of chemistry to be learned while experimenting with a Ruben's Tube...
Building Molar Mass
Doug Ragan | Sun, 05/10/2015 - 21:27
An advantage to teaching on the trimester schedule allows me the opportunity to teach the same course again roughly twelve weeks later. So after grading my 2nd trimester students’ Chemistry B final exams, I was able to evaluate certain topics that caused my students problems, reflect on my teaching, and then determine how I was going to better prepare my students in the 3rd trimester chemistry B class.
Writing Conversion Factors
David Licata | Sat, 11/15/2014 - 23:01
This worksheet is intended to be used as a "Guided Instructional Activity" (GIA). Students read a statement that gives a either a conversion factor or a pair of related measures and then write the information as two equivalent fractions ("conversion factors") and as an equality. In each representation, students are directed to give the numeral of the measure, unit, and identity of the chemical.
Finding and Writing the Molar Mass of Elements
David Licata | Tue, 11/04/2014 - 20:09
This worksheet is intended to be used as a "Guided Instructional Activity" (GIA). It asks students to find the molar mass of selected elements and write the molar mass as two equivalent fractions ("conversion factors") and as an equality. It is designed to help develop good habits in representing molar mass and other conversion factors, and to emphasize the idea that a conversion factor has a numerator and denominator that "name" identical quantities using different measures.