65 Решение задачки по химии №06 524

641. A mixture of iron and copper weighing 1.76 g was exposed to hot sulfuric acid with a volume of 7 ml with a mass fraction of H2SO4 70% (ρ = 1.6 g/cm3). Determine the composition of the mixture, how much and what kind of gas was released as a result of the reaction.

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