СаСО3
Объяснение:
Mr(CaCO3) = 40 + 12 + 16*3 = 100
W(O) = Ar(O) *n / Mr(CaCO3) *100% = 16*3 / 100 *100% = 48%
Mr(Na3PO4) = 23*3 + 31 + 16*4 = 164
W(O) = Ar(O) *n / Mr(Na3PO4) *100% = 16*4 / 164 *100% = 39%
Mr(K2SiO3) = 39*2 + 28 + 16*3 =154
W(O) = Ar(O) *n / Mr(K2SiO3) *100% = 16*3 / 154 *100% =31%
СаСО3
Объяснение:
Mr(CaCO3) = 40 + 12 + 16*3 = 100
W(O) = Ar(O) *n / Mr(CaCO3) *100% = 16*3 / 100 *100% = 48%
Mr(Na3PO4) = 23*3 + 31 + 16*4 = 164
W(O) = Ar(O) *n / Mr(Na3PO4) *100% = 16*4 / 164 *100% = 39%
Mr(K2SiO3) = 39*2 + 28 + 16*3 =154
W(O) = Ar(O) *n / Mr(K2SiO3) *100% = 16*3 / 154 *100% =31%