The accompanying absorption data were recorded at 390 nm in a 1.00 cm cells for a continuousvariation study of the colored product formed between Cd and the complexing reagent R.1.SolutionReagent volumes, mLA390cCd = 1.25 x 104 McR = 1.25 x 104 M10.000.000.0019.001.000.17428.002.000.35337.003.000.53046.004.000.67255.005.000.7234.006.000.67373.007.000.5378.2.008.000.35891.009.000.180100.0010.000.000Find the ligand-to-metal ratio in the product.b. Calculate an average value for the molar absorptivity of the complex and its uncertainty. Assumethat in the linear portions of the plot the metal is completely complexed.Calculate Kf for the complex using the stoichiometric ratio determined in (a) and the absorptiondata at the point of intersection of the two extrapolated lines.а.c.

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1. The accompanying absorption data were recorded at 390 nm in a 1.00 cm cells for a continuous variation study of the colored product formed between Cd and the complexing reagent R. Solution Reagent volumes, mL A390 cCd = 1.25 x 10“ M cR = 1.25 x 10“ M %3D 0.00 1.00 0.00 0.174 10.00 1 9.00 2 8.00 2.00 0.353 7.00 3.00 0.530 4 6.00 4.00 0.672 5 5.00 5.00 0.723 6.00 7.00 6. 4.00 0.673 3.00 0.537 8. 2.00 8.00 0.358 9. 1.00 9.00 0.180 10 0.00 10.00 0.000 1. Find the ligand-to-metal ratio in the product. p. Calculate an average value for the molar absorptivity of the complex and its uncertainty. Assume that in the linear portions of the plot the metal is completely complexed. Calculate Kf for the complex using the stoichiometric ratio determined in (a) and the absorption data at the point of intersection of the two extrapolated lines. C.

1. The accompanying absorption data were recorded at 390 nm in a 1.00 cm cells for a continuous variation study of the colored product formed between Cd and the complexing reagent R. Solution Reagent volumes, mL A390 cCd = 1.25 x 10“ M cR = 1.25 x 10“ M %3D 0.00 1.00 0.00 0.174 10.00 1 9.00 2 8.00 2.00 0.353 7.00 3.00 0.530 4 6.00 4.00 0.672 5 5.00 5.00 0.723 6.00 7.00 6. 4.00 0.673 3.00 0.537 8. 2.00 8.00 0.358 9. 1.00 9.00 0.180 10 0.00 10.00 0.000 1. Find the ligand-to-metal ratio in the product. p. Calculate an average value for the molar absorptivity of the complex and its uncertainty. Assume that in the linear portions of the plot the metal is completely complexed. Calculate Kf for the complex using the stoichiometric ratio determined in (a) and the absorption data at the point of intersection of the two extrapolated lines. C.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.17QAP

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