44. Solving a chemistry problem
9. Determine the content (mg/ml) of Fe2 in the solution if the following results were obtained after amperometric titration of 10 ml of the test solution:
V(K2Cr2O7), ml 1.00 1.20 1.30 1.40 1.50 1.60 1.70 1.80
I, μA 120 80 60 40 20 10 10 10
The titer of K2Cr2O7 for Fe2 is 0.00056 g/ml.
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