Question

Metallic molybdenum can be produced from the mineral molybdenite (MoS2). The mineral is first oxidized in air to molybdenum trioxide and sulfur dioxide. Molybde-num trioxide is then reduced to metallic molybdenum using hydrogen gas. The balanced equations are
MoS2(s) + 7/2O2(g) → MoO3(s) + 2SO2(g)
MoO3(s) + 3H2(g) → Mo(s) + 3H2O(l)
Calculate the volumes of air and hydrogen gas at 17oC and 1.00 atm that are necessary to produce 1.00 × 103 kg of pure molybdenum from MoS2. Assume air contains 21% oxygen by volume and assume 100% yield for each reaction.


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  • CreatedMay 04, 2015
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