Suppose that the prototype iron(II) solution has a molarity of 0.0250 upon mixing with the SCN- before any reaction. Since the SCN- solution has a molarity of 0.000100, all of it reacts with the much more concentrated iron(III) to make FeSCN2+. From this, the slope, m is determined. Now, for solution 1 (see previous work or the directions in the lab for the molarity), determine the molarity of iron(III) remaining if the absorbance of the FeSCN2+ complex was 0.4016 and slope, m, was previously determined to be 6700.

Suppose that the prototype iron(II) solution has a molarity of 0.0250 upon mixing with the SCN- before any reaction. Since the SCN- solution has a molarity of 0.000100, all of it reacts with the much more concentrated iron(III) to make FeSCN2+. From this, the slope, m is determined. Now, for solution 1 (see previous work or the directions in the lab for the molarity), determine the molarity of iron(III) remaining if the absorbance of the FeSCN2+ complex was 0.4016 and slope, m, was previously determined to be 6700.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter15: Complex Ion And Precipitation Equilibria

Section: Chapter Questions

Problem 76QAP

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