State what is the molar absorptivity of the unknown compound

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Reference no: EM13252399

A 2.78 10-4 M solution of a compound has an absorbance of 0.451 at 520 nm in a 1.00 cm cell. The solvent's absorbance under the same conditions is 0.019.

(a) What is the molar absorptivity of the unknown compound?
M -1cm-1

(b) What is the concentration of the compound in a solution, if the absorbance of the solution in a 1.00 cm cell at 520 nm is 0.384?
M

Reference no: EM13252399

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