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 & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section4.8: Stoichiometry Of Reactions In Aqueous Solution-titrations

Problem 2RC

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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? (Note: please provide necessary solutions)
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