Kiseonik

Submitted by Hemicarka5 on Wed, 01/29/2014 - 20:02
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Izracunajte maseni udio kiseonika u sumpor(IV)-oksidu,SO2.

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milicaradenkovic - Wed, 01/29/2014 - 20:18

SO2

w(O)=2*Ar(O)/Mr(SO2)

w(O)=2*16/64=0.5 =50 %