50. Solving a chemistry problem

50. Solving a chemistry problem

630. Platinum electrodes were immersed in an aqueous solution containing 1 mol/l of Al3+, Fe2+, Mg2+ ions and the voltage was slowly increased. After the beginning of the precipitation of one of the metals, the voltage was maintained constant. What metal and in what quantity was precipitated on the cathode in 30 minutes at a current strength of 2A?

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