jkdjfkal279 jkdjfkal279

21-03-2018
Chemistry

contestada

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

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mkryukova19 mkryukova19

21-03-2018

CuFeS2 chalcopyrite
M(CuFeS2)= 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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