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2) The ferrous ion-orthophenanthroline complex can be used to analyze for Fe(II) by using the absorption...

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Chemistry

2) The ferrous ion-orthophenanthroline complex can be used toanalyze for Fe(II) by using the absorption of this complex at 508nm. A group of samples is known to contain between 0.1 and 0.2 g ofFe. A known sample containing 100 mg of Fe per liter was treatedaccording to protocol, and the absorbance on a filter photometerwas set to 0. The absorbance of a second standard containing 200 mgFe per liter was then determined to be 0.795. What is theconcentration of the unknown, which was then found to have anabsorbance of 0.650?

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4.3 Ratings (560 Votes)
Ans BeerLamberts Law A e C l equation 1 where A Absorbance e molar absorptivity at specified wavelength l path    See Answer
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