Beer's Law Lab
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Original Sim and Translations |
Topics
- Beer's law
- Solutions
- Concentration
- Molarity
- Light
- Absorbance
- Transmittance
- Spectrophotometry
Description
“The thicker the glass, the darker the brew, the less the light that passes through.” Make colorful concentrated and dilute solutions and explore how much light they absorb and transmit using a virtual spectrophotometer!
Sample Learning Goals
- Describe the relationships between volume and amount of solute to solution concentration
- Explain qualitatively the relationship between solution color and concentration
- Predict and explain how solution concentration will change for adding or removing: water, solute, and/or solution
- Calculate the concentration of solutions in units of molarity (mol/L)
- Design a procedure for creating a solution of a given concentration
- Identify when a solution is saturated and predict how concentration will change for adding or removing: water, solute, and/or solution
- Describe the relationship between the solution concentration and the intensity of light that is absorbed/transmitted
- Describe the relationship between absorbance, molar absorptivity, path length, and concentration in Beer’s Law
- Predict how the intensity of light absorbed/transmitted will change with changes in solution type, solution concentration, container width, or light source, and explain why
Teacher Tips
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Overview of sim controls, model simplifications, and insights into student thinking ( PDF ). |
Teacher-Submitted Activities
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Authors | Level | Type | Subject |
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| Beer's Law Lab - Guided Inquiry Activity |
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Susan Hendrickson, Julia Chamberlain | UG-Intro | Guided Lab |
Chemistry |
| Investigation of a Solution’s Color (Qualitative and Quantitative) - Guided Inquiry Activity |
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Ted Clark, Julia Chamberlain | UG-Intro | Guided | Chemistry |
| Beer's Law Warm-Up |
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Julia Chamberlain | UG-Intro HS |
HW | Chemistry |
| How do PhET simulations fit in my middle school program? |
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Sarah Borenstein | MS | Other | Biology Physics Chemistry Earth Science |
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| Alignment of PhET sims with NGSS |
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Trish Loeblein | HS | Other | Chemistry Earth Science Biology Physics |
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| PhET Sims Aligned to the Chemistry Curriculum |
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Julia Chamberlain | UG-Intro HS |
Other | Chemistry | |
| MS and HS TEK to Sim Alignment | Elyse Zimmer | MS HS |
Other | Chemistry Biology Physics |
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| Light and Atoms | Lyric Portwood | HS UG-Intro |
Other Guided Lab |
Physics Chemistry |
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| Preguntas de razonamiento para todas las simulaciones HTML5 |
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Diana López | UG-Adv K-5 HS UG-Intro Grad MS |
Discuss HW |
Astronomy Chemistry Mathematics Physics |
Browse legacy activities.
The new HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.
iPad:
iOS 11+ Safari
iPad compatible sims
Android:
Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.
Chromebook:
Latest version of Google Chrome
The HTML5 and Flash PhET sims are supported on all Chromebooks.
Chromebook compatible sims
Windows Systems:
Microsoft Edge and Internet Explorer 11, latest version of Firefox, latest version of Google Chrome.
Macintosh Systems:
macOS 10.9.5+, Safari 9+, latest version of Chrome.
Linux Systems:
Not officially supported. Please contact phethelp@colorado.edu with troubleshooting issues.
| Design Team | Third-party Libraries | Thanks To |
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