CuO+H2SO4=CuSо4+H2O
n(Cuo)=m/M=20/80=0.25
n(Cuo)/1=n(CuSo4)/1
n(CuSo4)=0.25
m(CuSo4)=n*M=0.25*160=40г
CuO+H2SO4=CuSо4+H2O
n(Cuo)=m/M=20/80=0.25
n(Cuo)/1=n(CuSo4)/1
n(CuSo4)=0.25
m(CuSo4)=n*M=0.25*160=40г