with 2,3-quinoxaline-dithiol at the wavelength of 512 and 656 nm are given in the table below: A 0.350 g of soil sample containing A and B metal ions was dissolved in dilute acid and subsequently diluted to 50 mL with distilled water. A 25 mL aliquot was treated to eliminate interferences, after the addition of 2,3-quinoxaline-dithiol, the volume was adjusted to 50 mL. This solution has an absorbance of 0.514 at 510 nm and 0.357 at 656 nm in a 1-cm cell. Calculate the respective percentage of the metal ions A and B.
with 2,3-quinoxaline-dithiol at the wavelength of 512 and 656 nm are given in the table below: A 0.350 g of soil sample containing A and B metal ions was dissolved in dilute acid and subsequently diluted to 50 mL with distilled water. A 25 mL aliquot was treated to eliminate interferences, after the addition of 2,3-quinoxaline-dithiol, the volume was adjusted to 50 mL. This solution has an absorbance of 0.514 at 510 nm and 0.357 at 656 nm in a 1-cm cell. Calculate the respective percentage of the metal ions A and B.
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter7: Electronic Structure
Section: Chapter Questions
Problem 7.100QE
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Question
The absorptivity data for the complexes formed when metal ions A and B react
with 2,3-quinoxaline-dithiol at the wavelength of 512 and 656 nm are given in the table below:
A 0.350 g of soil sample containing A and B metal ions was dissolved in dilute acid and subsequently diluted to 50 mL with distilled water. A 25 mL aliquot was treated to eliminate interferences, after the addition of 2,3-quinoxaline-dithiol, the volume was adjusted to 50 mL. This solution has an absorbance of 0.514 at 510 nm and 0.357 at 656 nm in a 1-cm cell. Calculate the respective percentage of the metal ions A and B.
Transcribed Image Text:Wavelength
656 nm
1,240
512 nm
36,400
EA
3/6
EB
5,500
15,700
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