4. A 35.00 ml sample of water run-off from the BSU coal-pile was collected and t

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4. A 35.00 ml sample of water run-off from the BSU coal-pile was collected and treated with an excess of KSCN to complex the Fe(I) and form a red-complex at 450 nm. After dilution with DI water to 250.00 ml, it was analyzed on a double beam spectrophotometer, and it ga a reading of 63.5%T at 450 nm in a 1.50 cm cell. A standard was also prepared by taking 10.00 ml of a 8.2 x 104 M FeCI) standard solution, adding excess KSCN, diluting to 100.0 ml, and analysis in the same 1.50 cm cell, giving a 43.2% T What is the concentration in ppm of the Fe" in the original run-off solution. (12 points) 5. There are 4 regions of Beer's Law where it fails: A, B, C, D. In your own words, pleas describe and show using the Beer's Law equation the causes of these deviations: (12 points) Cone

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4. A 35.00 ml sample of water run-off from the BSU coal-pile was collected and t

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