Объяснение:
Mr(P2O5) = 31*2 + 16*5 =142
W(P) = Ar(P) *n / Mr(P2O5) *100% = 31*2 / 142 *100% = 44%
Mr(P2O3) = 31*2 + 16*3 = 110
W(P) = Ar(P) *n / Mr(P2O3) *100% = 31*2 / 110 *100% =56%
Объяснение:
Mr(P2O5) = 31*2 + 16*5 =142
W(P) = Ar(P) *n / Mr(P2O5) *100% = 31*2 / 142 *100% = 44%
Mr(P2O3) = 31*2 + 16*3 = 110
W(P) = Ar(P) *n / Mr(P2O3) *100% = 31*2 / 110 *100% =56%