The concentration of iron in a solution can be determined using UV?Vis spectrophotometry by reacting the iron with 1.10-phenanthroline to produce a colored complex. The following data were obtained for a series of standard solutions of iron/1,10-phenanthroline complex measured in a 1.00 cm cell. Concentration (M) Absorption 0.50x10-4 0.109 1.0x10-4 0.218 2.0x10-4 0.436 3.0x10-4 0.656 4.0x10-4 0.872 a.Prepare a Beer’s law plot using the above data b.Calculate the concentration of an iron 1, 10-phenanthroline complex solution that has an absorbance of 0.317 c.Calculate the molar absorptivity of the iron/1, 10-phenanthroline complex

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The concentration of iron in a solution can be determined using UV?Vis spectrophotometry by reacting the iron with 1.10-phenanthroline to produce a colored complex. The following data were obtained for a series of standard solutions of iron/1,10-phenanthroline complex measured in a 1.00 cm cell.

Concentration (M) Absorption
0.50x10-4 0.109
1.0x10-4 0.218
2.0x10-4 0.436
3.0x10-4 0.656
4.0x10-4 0.872

a.Prepare a Beer’s law plot using the above data

b.Calculate the concentration of an iron 1, 10-phenanthroline complex solution that has an absorbance of 0.317

c.Calculate the molar absorptivity of the iron/1, 10-phenanthroline complex

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