1)FeCl2, FeCl3, PbCl2
2)Mr(P2O3) = 2Ar(P) + 3Ar(O) = 2 х 31 + 3 х 16 = 110
w(P/P2O3) = 2Ar(P)/Mr(P2O3) x 100% = 2 x 31/110 x 100% = 56,36%
Mr(P2O5) = 2Ar(P) + 5Ar(O) = 2 х 31 + 5 х 16 = 142
w(P/P2O5) = 2Ar(P)/Mr(P2O5) x 100% = 2 x 31/142 x 100% = 43,66%
FeCL2,FeCL3,PbCL2
P2O3
w(P)=M(P)/M(P2O3)=31*2/110*100%=56,4%
P2O5
w(P)=M(P)/M(P2O5)=31*2/142*100%=43,7%
1)FeCl2, FeCl3, PbCl2
2)Mr(P2O3) = 2Ar(P) + 3Ar(O) = 2 х 31 + 3 х 16 = 110
w(P/P2O3) = 2Ar(P)/Mr(P2O3) x 100% = 2 x 31/110 x 100% = 56,36%
Mr(P2O5) = 2Ar(P) + 5Ar(O) = 2 х 31 + 5 х 16 = 142
w(P/P2O5) = 2Ar(P)/Mr(P2O5) x 100% = 2 x 31/142 x 100% = 43,66%
FeCL2,FeCL3,PbCL2
P2O3
w(P)=M(P)/M(P2O3)=31*2/110*100%=56,4%
P2O5
w(P)=M(P)/M(P2O5)=31*2/142*100%=43,7%