Define what is the nitrite concentration in the waste water

Reference no: EM13660510

Nitrite can be oxidized by potassium dichromate (K2Cr2O7) in acidic solution. 50.0 mL of waste water is titrated utilizing K2Cr2O7. It takes 17.87mL of 0.002587 M K2Cr2O7 to reach the endpoint. Define what is the nitrite concentration in the original waste water sample measured in mg /L?

Cr2O72- (aq) + NO2- (aq) ? Cr3+ (aq) + NO3- (aq) [unbalanced]

Reference no: EM13660510

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