Beer's Law Lab

Even if you never were the best student at science, you have to admit that chemistry classes could sometimes be fun. There’s always something unexplainably enjoyable about mixing various substances and seeing what happens, even if the result isn’t necessarily a cartoonish explosion.
This is why an application that allows you to perform such chemical experiments will probably seem fun to many, even if it doesn’t allow you to actually mix substances that go boom. However, with Beer’s Law Lab you may actually help you learn an important science lesson.

An animated chemistry experiment

Beer’s law (also known as the Beer-Lambert Law, the Lambert-Beer Law or the Beer-Lambert-Bouguer Law) relates the attenuation of light to the properties of the material that the light travels through. More specifically, the attenuation of light can be related to the concentration of certain substances.
In order to understand this concept better, the application allows us to play with concentration first. You can pour solutes such as cobalt chloride, potassium chromate, nickel chloride or copper sulfate (in either solid or liquid states) in a water container, and then directly measure the concentration. You can also add or remove some of the water, or make it evaporate. Once you understand this concept, you’re probably ready to move to the actual Beer’s Law experiment.

The actual Beer’s Law experiment

In the app’s second tab, you make a ray of light pass through a container filled with a solution. You can then measure the light’s transmittance or its absorbance, while you modify the liquid’s concentration, the size of the container or the light’s wavelength.
While Beer’s Law Lab looks and feels like a fun little experiment, you probably won’t understand too much from it unless you have a good chemistry teacher by your side. Nevertheless, it’s safe to say that Beer’s Law Lab succeeds as an educational app, and has the potential to make a chemistry lesson even more fun.