Multiply .05M by .1 L=.005 Moles Multiply the moles by the molar massCuSO4∙5H2O is HYDRATED. Must include the H20 in the molar mass.Calculating the amount of Pb(NO3)2 needed to make 20 ml of a .05 M solution.05M *.02=.001 moles of lead(II)nitrate.001/ molar mass(3312)=.3312 moles Dissolve each into their correct amounts of DI water, which is about 50% of the desired amount of solution. Add each to the correct volumetric flask. IF CONNECTIONS ARE CLEAN AND TIGHT, THE VOLTAGE RECORDED BY THE VOLTEMETER WILL SETTLE QUICKLY. CLEAN ERRYTHINGPART B: UNKNOWNSUsing the CuSO4 made for the first part, AKA WITH A KNOWN MOLARITY.