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can you explain how I can get 1.596 mg/L of concentration of Fe3+ in dilutes sample and can you also make the calibration curve.

can you explain how I can get 1.596 mg/L of concentration of Fe3+ in dilutes sample and can you also make the calibration curve.

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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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can you explain how I can get 1.596 mg/L of concentration of Fe3+ in dilutes sample and can you also make the calibration curve.

UV-Vis Spectrophotometry Concentration of iron(III) standard solution: 11.17 Table 2.2 Solutions Standards Volume added of standard solution (mL) Concentration (mg/L) Absorbance 1 0.00 mL 0.00 0.002 2 2.50 mL 1.117 0.126 3 5.00 mL % 2.234 0.273 mg/L 4 7.50 mL mg/L 3.351 0.403 5 10.00 mL 4.468 Calibration curve R² value (correlation coefficient, from calibration curve): 0.9989 0.522 Concentration of Fe³+ in diluted sample (from calibration curve): 1.596 mg/L Concentration of Fe³+ in stock sample: Average %m(Fe³+) in complex: Iron Oxalate Sample 0.190
Transcribed Image Text:UV-Vis Spectrophotometry Concentration of iron(III) standard solution: 11.17 Table 2.2 Solutions Standards Volume added of standard solution (mL) Concentration (mg/L) Absorbance 1 0.00 mL 0.00 0.002 2 2.50 mL 1.117 0.126 3 5.00 mL % 2.234 0.273 mg/L 4 7.50 mL mg/L 3.351 0.403 5 10.00 mL 4.468 Calibration curve R² value (correlation coefficient, from calibration curve): 0.9989 0.522 Concentration of Fe³+ in diluted sample (from calibration curve): 1.596 mg/L Concentration of Fe³+ in stock sample: Average %m(Fe³+) in complex: Iron Oxalate Sample 0.190
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