W(E) = 43.7%
Ar(E) - ?
E2O5 - ?
W(O) = 100 - 43.7 = 56.3 %
Ar(O) = 5*16 = 80.
Mr(E2O5) = 80/0.563 = 142
Ar(E) = (142 - 80)/2 = 31 - Это фосфор.
P2O5
W(E) = 43.7%
Ar(E) - ?
E2O5 - ?
W(O) = 100 - 43.7 = 56.3 %
Ar(O) = 5*16 = 80.
Mr(E2O5) = 80/0.563 = 142
Ar(E) = (142 - 80)/2 = 31 - Это фосфор.
P2O5