A solution of KMnO4 with a concentration of 8.25 x 10-5 M yields an absorbance value of 0.1302 when measured in a 5.60 cm cuvette, set at a wavelength of 725 nm. Compute for the Molar Absorptivity Coefficient of the sample. Choices: a. 2.8182x10-8       c. 4.8182x10-8 b. 3.8182x10-8       d. 5.8182x10-8

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UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.