It was decided to analyze a waste solution that contains an unknown concentration of Mn²* ions using colorimetry. A strong oxidizing agent was added to a 6.40 ml sample of the solution to convert the colorless manganese ions into purple permanganate ions. After the reaction is complete, the solution was diluted to 250.0 mlL and analyzed in a colorimeter. The percent transmittance of the solution was determined to be 46.0%. Also a calibration curve was prepared by using a series of solutions with known concentrations of permanganate and the equation for the best fit line was found. y = 1910 - x + 0.035 What is the absorbance of the permanganate in the diluted waste solution? A = What is the concentration of the permanganate in the diluted waste solution? concentration: M What is the concentration of the Mn²+ ions in the original waste solution? [Mn *] =

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Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.