103 Задачка по химии №010 355

During the firing of a mineral consisting of 2 elements, a metal oxide (III) containing 30% oxygen and a gaseous oxide containing 50% element (IV) were obtained, which, upon maximum absorption with a NaOH solution, forms a salt, weighing 50.4 g. For the reduction of Me2O3 requires 6.72 liters of CO. Determine the mineral and its mass.

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