Question

The maximum absorbance of visible light occurs at 450nm for the FeSCN +2 ion. What is...

The maximum absorbance of visible light occurs at 450nm for the FeSCN +2 ion. What is the dominanct color of light absorbed? What is the dominant color of light trnamitted? How do you know? and what affect does a dirty cuvette have on the absorbency reading for FeSCN2+ solution?

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Answer #1

a) The dominanct color of light absorbed = blue-violet

b) Complemetary color of absorbed color will be exhibited. Complementary color of blue-violet is yellow-orange

The dominant color of light trnamitted = yellow-orange

c) The effect of dirty cuvette on the absorbency reading: Absorbance reading value may be less than the original one. But the complex absorbs at 450 nm only. That means dirty cuvette does not change the absorbace range but it decreases the extent of absorbance.

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