As your undergraduate thesis, you developed a colorimetric method for determining a certain metal (M) found in your local water supply. You achieved this by reacting the metal with an organic ligand that produced a colored complex that strongly absorbs the wavelength at 478 nm. The following results were obtained for standard solutions of nitrite and for a sample containing an unknown amount: mg/L metal Absorbance 0.000 0.000 0.100 0.052 0.200 0.110 0.400 0.214 0.500 0.281 1.000 0.556 1.500 0.816 2.000 1.078 Sample 0.114 d. Assuming the path length of your beam is 1.00 cm, which is the common size for a cuvette, what is the absorptivity of your solution? e. What is the concentration (mg/L) of the metal in your sample? Show your calculation, follow format.

As your undergraduate thesis, you developed a colorimetric method for determining a certain metal (M) found in your local water supply. You achieved this by reacting the metal with an organic ligand that produced a colored complex that strongly absorbs the wavelength at 478 nm. The following results were obtained for standard solutions of nitrite and for a sample containing an unknown amount: mg/L metal Absorbance 0.000 0.000 0.100 0.052 0.200 0.110 0.400 0.214 0.500 0.281 1.000 0.556 1.500 0.816 2.000 1.078 Sample 0.114 d. Assuming the path length of your beam is 1.00 cm, which is the common size for a cuvette, what is the absorptivity of your solution? e. What is the concentration (mg/L) of the metal in your sample? Show your calculation, follow format.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter24: Introduction To Spectrochemical Methods

Section: Chapter Questions

Problem 24.21QAP

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