3.4Molar absorptivity data for the cobalt and nickel complexes with 2,3-quinoxalinedithiol areEco=36,400 and EN=5520 at 510 nm and Eco-1240 and EN=17,500 at 656 nm. A 0.425 gsample was dissolved and diluted to 50.0 mL. A 25.0 mL aliquot was treated to eliminateinterferences, after addition of 2,3-quinoxalinedithiol, the volume was adjusted to 50.0mL. This solution had an absorbance of 0.446 at 510 nm and 0.326 at 656 nm in a 1.00cm cell. Calculate the concentration (parts per million) of Co and Ni in the sample.

Answered: Image /qna-images/answer/d69b70ae-6120-4815-b83c-ede5259adecc.jpg

lar absorptivity data for the cobalt and nickel complexes with 2,3-quinoxalinedithiol are =36,400 and EN=5520 at 510 nm and Eco-1240 and EN=17,500 at 656 nm. A 0.425 g mple was dissolved and diluted to 50.0 mL. A 25.0 mL aliquot was treated to eliminate erferences, after addition of 2,3-quinoxalined ithiol, the volume was adjusted to 50.0 . This solution had an absorbance of 0.446 at 510 nm and 0.326 at 656 nm in a 1.00 cell. Calculate the concentration (parts per million) of Co and Ni in the sample.

lar absorptivity data for the cobalt and nickel complexes with 2,3-quinoxalinedithiol are =36,400 and EN=5520 at 510 nm and Eco-1240 and EN=17,500 at 656 nm. A 0.425 g mple was dissolved and diluted to 50.0 mL. A 25.0 mL aliquot was treated to eliminate erferences, after addition of 2,3-quinoxalined ithiol, the volume was adjusted to 50.0 . This solution had an absorbance of 0.446 at 510 nm and 0.326 at 656 nm in a 1.00 cell. Calculate the concentration (parts per million) of Co and Ni in the sample.

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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