Объяснение:
Mr(Sb2O5) = 122*2 + 16*5 = 324
W(Sb) = Ar(Sb) *n / Mr(Sb2O5) *100% = 122 *2 / 324 *100% = 75%
W(O) = Ar(O) *n / Mr(Sb2O5) *100% = 16*5 / 324 *100% =25%
Объяснение:
Mr(Sb2O5) = 122*2 + 16*5 = 324
W(Sb) = Ar(Sb) *n / Mr(Sb2O5) *100% = 122 *2 / 324 *100% = 75%
W(O) = Ar(O) *n / Mr(Sb2O5) *100% = 16*5 / 324 *100% =25%