What is the molarity of each of the following solutions?
A. You pipet 20.00 mL of 0.0600 M CuCl2 into a 100.00 mL volumetric flask and fill to the mark.
B. You pipet ten milliliters of the solution from part (A) in a twenty five milliliter volumetric flask and dilute to the mark.
C. You pipet five milliliters of the solution from part (B) into a beaker and then pipet ten milliliters of DI water into the beaker. Assume volumes are additive.
2. What is the purpose of aligning the mark on the front of the cuvette with the mark on the sample holder of the spectrophotometer?