10. Spectrum of a Mixture. The UV-visible spectra of pure solutions of cobalt 2+, nickel 2+ and copper 2+ salts, and of a mixture of the three, are given on the CD-ROM over the wavelength range 350-820 nm. Instead of using absorbance readings at only three wavelengths to calculate the concentrations of the three salts in the mixture (as was done in problem 9-4), use the data at all 236 wavelength data points to calculate the three concentrations. Use the relationship A=bc, where , the molar absorptivity, is a dimensionless constant for a particular species at a particular wavelength, b is the light path length (1.00cm in this experiment) and c is the molar concentration. For the mixture, Aobsd=C0CCo0+NCNi+CuCCu at each wavelength. Use the Solver Statistics macro to obtain the standard deviations of the three concentrations