ОтвMCuSO4=250·0.16=40g
MCuSO4=160g/mol
vCuSO4=40/160=0.25mol -isbytok
mNaOH=20·0.5=10g
MNaOH=40g/mol
vNaOH=10/2·40=0.125mol
10g xg
CuSO4+2NaOH=Cu(OH)2↓+Na2SO4
80g 98g
x=10·98/80=12.25g
ОтвMCuSO4=250·0.16=40g
MCuSO4=160g/mol
vCuSO4=40/160=0.25mol -isbytok
mNaOH=20·0.5=10g
MNaOH=40g/mol
vNaOH=10/2·40=0.125mol
10g xg
CuSO4+2NaOH=Cu(OH)2↓+Na2SO4
80g 98g
x=10·98/80=12.25g