A student prepared a calibration curve by measuring the absorbance of a series of standard solutions of a common antibacterial compound at 293 nm, using a cuvette with a pathlength of 5.00 cm. When fitted with a linear function, the following equation was obtained from the graph: y = 204.5 M X What is the molar absorptivity of the compound at 293 nm? -1 –1 A. 0.0244 M cm -1 cm В. 1.43 М C. 0.287 M¯'cm -1 -1 -1 /D. 40.9 M¯'cm

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Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.