y = 3506.2x + 0.0421      R2 = 0.9978 A student prepared a solution that had 5.00 mL 0.002 M iron(III) nitrate in 1 M nitric acid, 3.00 mL 0.002 M potassium thiocyanate, and 2.00 mL DI water. Using the standard curve above, if the absorbance for the solution was 0.422, calculate the equilibrium constant, Keq.

Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions
Section4.9: Spectrophotometry
Problem 4.14CYU
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y = 3506.2x + 0.0421      R2 = 0.9978

A student prepared a solution that had 5.00 mL 0.002 M iron(III) nitrate in 1 M nitric acid, 3.00 mL 0.002 M potassium thiocyanate, and 2.00 mL DI water.

Using the standard curve above, if the absorbance for the solution was 0.422, calculate the equilibrium constant, Keq.

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