Question: Metallic molybdenum can be produced from the mineral molybdenite MoS2

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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