Lab

Today in class, my partner and I conducted a lab using a spectrophotometer. To zero out the the machine, we used water in a cuvette and adjusted knobs to zero and one hundred percent transmittance. Then, we placed one of our solutions, Cr(NO3)3, also in a cuvette, in the machine to measure its percent transmittance and absorbance. Next, we placed the CoCl2 in a cuvette in the machine and measured its transmittance and absorbance. We repeated this entire process multiple times, changing the wavelengths each time. Here are some pictures from the lab below.