You were given an unknown mixture that contains two metal salts (A) Co(NO3)2 and (B) Cr(NO3)2 and requested to determine their concentration. The following representative information about the absorbance data were also provided. Measurements were made in a 1.0 cm quartz cells. Pure A (mol/l) 1.5 x 10-1 Pure B (mol/l) Abs @510 nm Abs @575 nm 0 0.714 0.097 0 6 x 102 0.298 0.757 Unknown conc in mixture 0.671 0.330 Unknown conc in mixture How would you go about calculating the concentration of the two salts?

You were given an unknown mixture that contains two metal salts (A) Co(NO3)2 and (B) Cr(NO3)2 and requested to determine their concentration. The following representative information about the absorbance data were also provided. Measurements were made in a 1.0 cm quartz cells. Pure A (mol/l) 1.5 x 10-1 Pure B (mol/l) Abs @510 nm Abs @575 nm 0 0.714 0.097 0 6 x 102 0.298 0.757 Unknown conc in mixture 0.671 0.330 Unknown conc in mixture How would you go about calculating the concentration of the two salts?

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section4.9: Spectrophotometry

Problem 4.14CYU

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