Chemistry · Environmental Chemistry

A 100 mL sample of paper industry effluent is digested in acidified dichromate solution and by back titration it is found that 5 × 10 -4 mol of dichromate has been consumed in chemical oxidation. What is the Chemical Oxygen Demand (COD) in mg O 2 L -1 of the sample?

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A 100 mL sample of paper industry effluent is digested in acidified dichromate solution and by back titration it is found that 5 × 10 -4 mol of dichromate has been consumed in chemical oxidation. What is the Chemical Oxygen Demand (COD) in mg O 2 L -1 of the sample?

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A 100 mL sample of paper industry effluent is digested in acidified dichromate solution and by back titration it is found that 5 &times; 10 -4 mol of dichromate has been consumed in chemical oxidation. What is the Chemical Oxygen Demand (COD) in mg O 2 L -1 of the sample?

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A 100 mL sample of paper industry effluent is digested in acidified dichromate solution and by back titration it is found that 5 × 10 -4 mol of dichromate has been consumed in chemical oxidation. What is the Chemical Oxygen Demand (COD) in mg O 2 L -1 of the sample?