Позначте оксид,у яркого найменьша Маслова части на оксигену:
AL2O3
SO2
Na2O
K2O
Ангелина8281
1
30.03.2020 21:00
0
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1
К2О
Объяснение:
Mr(Al2O3) = 27*2 + 16*3 =102
W(O) = Ar(O) *n / Mr(Al2O3) *100% = 16*3 / 102 *100% = 47%
Mr(SO2) = 32 + 16*2 = 64
W(O) = Ar(O) *n / Mr(SO2) *100% = 16*2 / 64 *100% = 50%
Mr(Na2O) = 23*2 + 16 = 62
W(O) = Ar(O) *n / Mr(Na2O) *100% = 16*1 / 62 *100% = 26%
Mr(K2O) = 39*2 + 16 = 94
W(O) = Ar(O) *n / Mr(K2O) *100% = 16*1 / 94 *100% = 17%