An unknown cadmium(II) solution was analyzed polarographically by the method of standard additions. A 20.00-mL sample of the unknown solution produced a diffusion current of 1.32 µA. Following addition of a 5.00- mL aliquot of 3.65 x 10-8 M Cd²+ standard solution to the unknown solution, a diffusion current of 5.30 µA was produced. Calculate the concentration of Cd²+ in the unknown solution. Concentration M
An unknown cadmium(II) solution was analyzed polarographically by the method of standard additions. A 20.00-mL sample of the unknown solution produced a diffusion current of 1.32 µA. Following addition of a 5.00- mL aliquot of 3.65 x 10-8 M Cd²+ standard solution to the unknown solution, a diffusion current of 5.30 µA was produced. Calculate the concentration of Cd²+ in the unknown solution. Concentration M
Chemistry
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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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Transcribed Image Text:An unknown cadmium(II) solution was analyzed
polarographically by the method of standard additions. A
20.00-mL sample of the unknown solution produced a
diffusion current of 1.32 µA. Following addition of a 5.00-
mL aliquot of
3.65 x 10- M
2+
Cdt standard solution to the unknown solution, a diffusion
current of 5.30 µA was produced. Calculate the concentration
of
Cd²+ in the unknown solution.
Concentration
M
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