Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

1. The cuvettes we used in this experiment have a pathlength of 1.0 cm, and that

ID: 1077335 • Letter: 1

Question

1. The cuvettes we used in this experiment have a pathlength of 1.0 cm, and that is the most common size for solution work. However, 0.1 cm pathlength cuvettes are available. Would you expect these narrower cuvettes to be more useful to measure solutions of high concentration or low concentration? Explain your choice. Hint: absorption spectrometers become unreliable at absorbance values greater than 1.5 2. You could have determined the extinction coefficient (e)of copper(l) sulfate with just one data point and of ? Beer's law. Why would you bother to do a whole series of concentrations like this in order to calculate the value

Explanation / Answer

1. The cuvettes we used in this experiment have a pathlength of 1.0 cm, and that