A simultaneous determination for cobalt (Co) and nickel (Ni) can be based upon absorption by their respective 8-hydroxyquinolinol complexes. Molar absorptivities corresponding to their absorption maxima are as follows: Molar Absorptivity, 8 365 nm 700 nm Co 3600 430 Ni 3200 10 The absorbances of a sample at 365 nm and 700 nm with a 1.00-cm cell are 0.600 and 0.040, respectively. Calculate the molar concentration of nickel (cN:) and cobalt (cco) in the sample. A. CN = 3.20 x 10$ M, ccs = 3.60 x 10$ M B. CNi = 3.60 x 10$ M, cco =3.20 x 10$ M C. CNi = 1.00 x 10° M, ccs = 4.13 × 105 M D. CN = 8.70 x 10$ M, cco = 9.10 x 10$ M E. CNi = 9.10 x 105 M, cco = 8.70 x 105 M

A simultaneous determination for cobalt (Co) and nickel (Ni) can be based upon absorption by their respective 8-hydroxyquinolinol complexes. Molar absorptivities corresponding to their absorption maxima are as follows: Molar Absorptivity, 8 365 nm 700 nm Co 3600 430 Ni 3200 10 The absorbances of a sample at 365 nm and 700 nm with a 1.00-cm cell are 0.600 and 0.040, respectively. Calculate the molar concentration of nickel (cN:) and cobalt (cco) in the sample. A. CN = 3.20 x 10$ M, ccs = 3.60 x 10$ M B. CNi = 3.60 x 10$ M, cco =3.20 x 10$ M C. CNi = 1.00 x 10° M, ccs = 4.13 × 105 M D. CN = 8.70 x 10$ M, cco = 9.10 x 10$ M E. CNi = 9.10 x 105 M, cco = 8.70 x 105 M

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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