Обчисліть масові частки елементів у сполуках :
So2, ZnO, MgS, FeS2, CaCl2, FeO, NO2, H2S, K2O, H2O, BaO
So2, ZnO, MgS, FeS2, CaCl2, FeO, NO2, H2S, K2O, H2O, BaO
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Answers & Comments
W(S) = 50%
W(O2)= 49,95%
2)ZnO
W(Zn) = 80%
W(O)= 19,65 =20%
3) MgS
W(Mg)= 43%
W(S)= 56,8 = 57%
4) FeS2
W(Fe)= 46%
W(S2) = 54%
5) CaCl2
W( Ca) = 36
W(Cl2) = 64 %
6)FeO
W(Fe)= 77%
S(O)=22%