Explain absorbance of solutions containing cr as dichromate

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Reference no: EM13238437

The absorbance of solutions containing Cr as dichromate Cr2O7-2 in 1.0M H2SO4 were measured in a 5cm cell. The following results were obtained

Concentration(M) Absorbance

0.0000015 0.034
0.0000030 0.085
0.0000060 0.168
0.0000105 0.252
0.0000120 0.335
0.0000210 0.669

What is the molar absorptivity of dichromate?

Reference no: EM13238437

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