38. Solving a chemistry problem
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72. Calculate the mass of iron ions that reacted at the anode at a constant potential according to the reaction Fe2 - ē → Fe3, if 10.5 cm3 0.150 mol / dm3 of sodium thiosulfate solution was used to titrate the iodine released in the coulometer of the generator circuit. What is the time required for the electrooxidation of 100 mg of iron (II) at a current of 30 mA?
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