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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
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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 Со 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 (ex:) and cobalt (cco) in the sample. A. CN = 3.20 x 10$ M, cco = 3.60 x 10:5 M B. CNi = 3.60 x 10$ M, cco =3.20 × 10$ M C. CNi = 1.00 x 10³ M, cco = 4.13 x 10$ M D. CNi = 8.70 x 105 M, cco = 9.10 x 105 M CNi = 9.10 x 10$ M, cco = 8.70 x 10 M E.
Transcribed Image Text: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 Со 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 (ex:) and cobalt (cco) in the sample. A. CN = 3.20 x 10$ M, cco = 3.60 x 10:5 M B. CNi = 3.60 x 10$ M, cco =3.20 × 10$ M C. CNi = 1.00 x 10³ M, cco = 4.13 x 10$ M D. CNi = 8.70 x 105 M, cco = 9.10 x 105 M CNi = 9.10 x 10$ M, cco = 8.70 x 10 M E.
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