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Five standard chromium (VI) solutions were prepared through serial dilution technique with corresponding absorbance readings at 540 nm wavelength (as follows:  Absorbance               Concentration A1 = 0.650                  C1 = 1.9   ppm A2 = 0.712                  C2 = 4.0   ppm A3 = 1.370                  C3 = 6.0   ppm A4 = 2.050                  C4 = 8.0   ppm A5 = 3.423                  C5 = 10.0 ppm The sample solution gives an average absorbance reading of 0.713. What is then the concentration of chromium (VI) ion in the sample?

Five standard chromium (VI) solutions were prepared through serial dilution technique with corresponding absorbance readings at 540 nm wavelength (as follows:  Absorbance               Concentration A1 = 0.650                  C1 = 1.9   ppm A2 = 0.712                  C2 = 4.0   ppm A3 = 1.370                  C3 = 6.0   ppm A4 = 2.050                  C4 = 8.0   ppm A5 = 3.423                  C5 = 10.0 ppm The sample solution gives an average absorbance reading of 0.713. What is then the concentration of chromium (VI) ion in the sample?

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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Five standard chromium (VI) solutions were prepared through serial dilution technique with corresponding absorbance readings at 540 nm wavelength (as follows:

 Absorbance               Concentration

A1 = 0.650                  C1 = 1.9   ppm

A2 = 0.712                  C2 = 4.0   ppm

A3 = 1.370                  C3 = 6.0   ppm

A4 = 2.050                  C4 = 8.0   ppm

A5 = 3.423                  C5 = 10.0 ppm

The sample solution gives an average absorbance reading of 0.713. What is then the concentration of chromium (VI) ion in the sample?

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