50. Solving a chemistry problem

50. Solving a chemistry problem

80. In the coulometric determination of Cu2 ions by electrogenerated Sn2 ions, a current of 40 mA was used. The equivalence point when titrating samples with a volume of 30 ml of the test solution is reached in 5 min 08 s. Determine the concentration of the test solution (in grams per liter).

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