Եվա Միքայելյան

CO2, H2O, Fe2O3

CO2

Mr=12•1+16•2=44

w(C) = 12/44•100 = 27,27

w(O2) = 16•2/44•100 = 72,72

H2O

Mr=1•2+16•1=18

w(H2) = 2/18•100 = 11,11

w(O) = 16/18•100=88,88

Fe2O3

Mr=55•2+16•3=158

w(Fe2) = 110/158•100=69,62

w(O3) = 48/158•100=30,37