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26 July, 06:32

What is the mass of Cu in 3.71 x 10^3 kg of chalcopyrite?

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  1. 26 July, 06:40
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    CuFeS 2 chalcopyrite

    M (CuFeS 2) = 2*63.5+55.8+32*2 = 246.8 kg/kmol

    3710kg*1kmol/246.8 kg = 15.0 kmol CuFeS2

    in 15.0 kmol CuFeS2 is 15.0 kmol Cu

    15.0 kmol Cu*63.5kg/1kmol=953 kg Cu
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