A standard solution was put through appropriate dilutions to give the concentrations of iron shown in the table that follows. The iron(II)-1,10-phenanthroline complex was then formed in 25.0-mL aliquots of these solutions, following which each was diluted to 50.0 mL. The following absorbances (1.00-cm cells) were recorded at 510 nm:
A standard solution was put through appropriate dilutions to give the concentrations of iron shown in the table that follows. The iron(II)-1,10-phenanthroline complex was then formed in 25.0-mL aliquots of these solutions, following which each was diluted to 50.0 mL. The following absorbances (1.00-cm cells) were recorded at 510 nm:
Chapter24: Introduction To Spectrochemical Methods
Section: Chapter Questions
Problem 24.20QAP
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A standard solution was put through appropriate dilutions to give the concentrations of iron shown in the table that follows. The iron(II)-1,10-phenanthroline complex was then formed in 25.0-mL aliquots of these solutions, following which each was diluted to 50.0 mL. The following absorbances (1.00-cm cells) were recorded at 510 nm:
- Calculate the concentration, in ppm, of a sample with an abosrbance of 0.829.
Fe(II) concentration (ppm) | A510 |
4.00 | 0.160 |
10.0 | 0.390 |
16.0 | 0.630 |
24.0 | 0.950 |
32.0 | 1.260 |
40.0 | 1.580 |
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