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.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

Question

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.
1.
Solution
Reagent volumes, mL
A390
cCd = 1.25 x 104 M
cR = 1.25 x 104 M
10.00
0.00
0.00
1
9.00
1.00
0.174
2
8.00
2.00
0.353
3
7.00
3.00
0.530
4
6.00
4.00
0.672
5
5.00
5.00
0.723
4.00
6.00
0.673
7
3.00
7.00
0.537
8.
2.00
8.00
0.358
9
1.00
9.00
0.180
10
0.00
10.00
0.000
Find the ligand-to-metal ratio in the product.
b. 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.
а.
c.

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