Homework Help: College Chemistry Lab

Posted by L** on Monday, March 15, 2010 at 11:54pm.

The absorbance of a 6.3x10^-5M solution of an iron complex was measured to be 0.328 at the optimum wavelength. A second solution of the iron complex has an absorbance of 0.833 measured under identical conditions. What is the molarity of the complex in the SECOND SOLUTION?

College Chemistry Lab - DrBob222, Tuesday, March 16, 2010 at 12:46am
Absorbance = kC
Plug in A and C from the first run and calculate k.
Use k and absorbance of second run to calculate C for second sample.

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