Suppose you measure the absorbance of a yellow dye solution in a 1.00 cm cuvette (b31.00 cm). The absorbance of the solution at 427 nm is 0.29. If the molar absorptivity of yellow dye at 427 nm is 27400 M-cm-1, what is the concentration of the solution in M?

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Q: 0.35 μΜ Determine the molar absorptivity of has an absorbance of 0.42 at 610 nm in a 3.000-cm cell.…

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Q: What

A: As, you haven't provided value of ε It is solved using, ε=10,800 M-1.cm-1 We know that  A=εlc

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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.