CHEM 150 Study Guide - Final Guide: Volumetric Flask, Extrapolation, Isotope Dilution
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Related Questions
For the UV-Vis absorption data below, calculate the concentration for the metals M2+ and N2+ in a river sample if the unknown solution was prepared by diluting 10.00 mL of river water with 10.00 mL of ligand solution and diluted to a final volume of 100.00 mL. Assume the absorbance was measured in a 1.00-cm cell.
Solution | Wavelength | Concentration | Absorbance |
M2+ standard | 650 nm | 1.82E-05 | 0.723 |
N2+ standard | 650 nm | 1.82E-05 | 0.312 |
M2+ standard | 425 nm | 1.82E-05 | 0.199 |
N2+ standard | 425 nm | 1.82E-05 | 0.811 |
Unknown | 650 nm | ? | 0.753 |
Unknown | 425 nm | ? | 0.536 |