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 × 103 L/mol) x            where y is the absorbance of the solution at 525 nm and x is the concentration of MnO4– (aq) in mol/L. The pathlength of the cuvettes used in the experiment is exactly 1 cm. Using this information, what is the molar absorptivity of MnO4– (aq) at 525 nm?

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