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?

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter27: Gas Chromatography

Section: Chapter Questions

Problem 27.5QAP

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