катод: 2H2O+2e=H2+2OH(-) -2
анод : 2H2O +4e =O2 +4H(+)-1
4H2O+2H2O=2H2+4OH(-) +O2+4H(+)
2H2Oэлектролиз =2H2+O2
m=(J*t*Mэ): F; F=96485; Mэ(O2)=32:4=8;
m(O2)=(50*6900*8)/96485=28,6г.
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