A calibration curve constructed from absorbance values of solutions containing a known concentration of permanganate ions has the following best-fit line:
y = (3.62 Ã 103 L/mol) x
where y is the absorbance of the solution at 525 nm and x is the concentration of MnO4â (aq) in mol/L. The pathlength of the cuvettes used in the experiment is 1 cm. Based on this information, what is the molar absorptivity of MnO4â (aq) at 525 nm? Be sure to include units in your answer.
Molar absorptivity of MnO4â (aq) at 525 nm: __________________________
A sample of steel weighing 0.1863 g was dissolved and the manganese present was converted to MnO4â (aq). Water was then added to give a final solution volume of 100.00 mL. A sample of this solution was examined and was found to have an absorbance at 525 nm of 0.620 (pathlength = 1 cm). What is the percent Mn in this sample of steel?
A calibration curve constructed from absorbance values of solutions containing a known concentration of permanganate ions has the following best-fit line:
y = (3.62 Ã 103 L/mol) x
where y is the absorbance of the solution at 525 nm and x is the concentration of MnO4â (aq) in mol/L. The pathlength of the cuvettes used in the experiment is 1 cm. Based on this information, what is the molar absorptivity of MnO4â (aq) at 525 nm? Be sure to include units in your answer.
Molar absorptivity of MnO4â (aq) at 525 nm: __________________________
A sample of steel weighing 0.1863 g was dissolved and the manganese present was converted to MnO4â (aq). Water was then added to give a final solution volume of 100.00 mL. A sample of this solution was examined and was found to have an absorbance at 525 nm of 0.620 (pathlength = 1 cm). What is the percent Mn in this sample of steel?
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