Вычислите Mr вещества и определите w каждого элемента: 1)Mr(SO2) 2)P2S3 3)MgSO3
SO2=32*1+16*2=64 W(S)=32:64=0,5*100=50% W(O)=32:64=0,5*100=50% --- P2S3=31*2+32*2=126 W(P)=62:126=0,49*100=49% W(S)=64:126=0,51*100=51% --- MgSO3=24*1+32*1+16*3=104 W(Mg)=24:104=0,23*100=23% W(S)=32:104=0,31*100=31% W(O)=48:104=0,46*100=46%