Ligand X forms a complex with both cobalt and copper, each ofwhich has a maximum absorbance at 510 nm and 645 nm, respectively.A 0.263-g sample containing cobalt and copper was dissolved anddiluted to a volume of 100.0 mL. A solution containing ligand X wasadded to a 50.0 mL aliquot of the sample solution and diluted to afinal volume of 100.0 mL. The measured absorbance of the unknownsolution was 0.546 at 510 nm and 0.399 at 645 nm, when measuredwith a 1.00-cm cell. The molar absorptivities of the cobalt andcopper complexes at each wavelength are shown in the tablebelow.
What is the concentration of cobalt and copper in the finaldiluted solution?
What is the weight percent of cobalt (FM = 58.933 g/mol) andcopper (FM = 63.546 g/mol) in the 0.263-g sample?
