A solution of Potassium permanganate (KMnO4) has an absorbance of 0.539 when measured at 540nm in a 1.0cm cell. What is the concentration of the KMnO4? Prior to determining the absorbance for the unknown solution, the following calibration data were collected from the Spectrophotometer.
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The Beer-Lambert Law is a linear relationship between absorbance and concentration of an absorbing species. The equation is given by A = εlc, where A is the absorbance, ε is the molar absorptivity (or extinction coefficient), l is the path length of the cell (in Show more…
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