Pb3o4=pbo*pb2o3
PbO+H₂=Pb+H₂O
Pb₂O₃+3H₂=2Pb+3H₂O
ω(PbO)=(207+16)/(207*3+64)=223/685=0.3255
m(PbO)=68.5*0.3255=22.3г
n(PbO)=22.3/223=0.1 моль
m(Pb₁)=0.1*223=22.3 грамма
ω(Pb₂O₃)=1-0.3255=0.6745
m(Pb₂O₃)=68.5*0.6745=46.2г
n(Pb₂O₃)=46.2/685=0.067моль
n(Pb₂O₃)=0.134моль
m(Pb)=30г
M(Pb)=30+22.3=52.3г