w(CuSO4)=160:250=0,64;m(CuSO4)=1000*0,64=640г;
CuSO4
64:32:64
2:1:2
m(Cu)=(640:5)*2=256г;n(Cu)=256:64=4моль;
2Cu+O2=2CuO
1 1
n(CuO)=4моль;m(CuO)=4*80=320г;
w(CuSO4)=160:250=0,64;m(CuSO4)=1000*0,64=640г;
CuSO4
64:32:64
2:1:2
m(Cu)=(640:5)*2=256г;n(Cu)=256:64=4моль;
2Cu+O2=2CuO
1 1
n(CuO)=4моль;m(CuO)=4*80=320г;