zadatak sa SO2

Submitted by zimabg on Mon, 02/23/2015 - 19:25
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Koliko se kg SO2  moze dobiti przenjem jedne tone pirita, koji sadrzi 48% sumpora, ako posle przenja u nastalom Fe2O3 zaostaje 1% sumpora? Hvala

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milicaradenkovic - Tue, 02/24/2015 - 10:00

4FeS2+11O2------------------>2Fe2O3+8SO2

m(S)=(w2-w1)*m(pirita)

m(S)=(0.48-0.01)*1000000=470000 g

n(S)=m(S)/Mr=470000/32=14687.5 mol

n(SO2)=n(S)=14687.5 mol

m(SO2)=n(SO2)*Mr=64*14687.5=940000 g=940 kg