Объяснение:
Mr(P2O5)=2•31+5•16=62+80=142
w(P)=n•Ar(P)/Mr(P2O5)=2•31÷142= 0.4366 ( 43.66%)
Mr(PH3)=31+3•1= 34
w(P)=n•Ar(P)/Mr(PH3)=1•31÷34= 0.9118 (91.18%)
Объяснение:
Mr(P2O5)=2•31+5•16=62+80=142
w(P)=n•Ar(P)/Mr(P2O5)=2•31÷142= 0.4366 ( 43.66%)
Mr(PH3)=31+3•1= 34
w(P)=n•Ar(P)/Mr(PH3)=1•31÷34= 0.9118 (91.18%)