2. A zinc plate weighing 6.5 g was lowered into a solution containing iron (II) nitrate and iron (III) nitrate with equal molar concentrations. After the end of the chemical reactions, the mass of the plate became 5.995 g. The plate was removed from the solution and dissolved in 286.5 ml when heated. sulfuric acid solution with an acid mass fraction of 95% and a density of 1.8 g/ml. Determine the volume of gas released and the mass fractions of substances in the resulting solution.

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.