Question

Từ NaCl, MnO₂ H2SO4đặc, Fe, Cu , H2O . Viết PT điều chế FeCl2, FeCl3 , CuSO4

Answer 1

* Cu + H₂SO₄ -> CuSO₄ + H₂O +SO₂

* NaCl + H₂O -> NaOH + Cl₂ + H₂

2 Fe + 3Cl₂ -> 2FeCl₃

* 2FeCl₃ -> Cl₂ + 2FeCl₂

Answer 2

2NaCl--------->2Na+Cl2

Fe+Cl2--->FeCl2

2FeCl2+Cl2---->2FeCl3

Cu+H2SO4đ------------>CuSO4+SO2+H2O

Answer 3

https://i.imgur.com/g5UP8x6.jpg

Answer 4

https://i.imgur.com/T5AMIA8.jpg

Answer 5

-Điều chế FeCl₂: 2NaCl + 2H₂O\(\xrightarrow[mn]{đp}\) 2NaOH+H₂\(\uparrow\)+Cl₂\(\uparrow\)

H₂+Cl₂ \(\underrightarrow{t^o}\) 2HCl

Fe+2HCl\(\rightarrow\)FeCl₂+H₂

-Điều chế FeCl₃:+ 2NaCl\(\xrightarrow[nc]{đp}\)2Na+Cl₂

2Fe+3Cl₂\(\underrightarrow{t^o}\)2FeCl₃

+ 2NaCl + 2H₂O\(\xrightarrow[mn]{đp}\) 2NaOH+H₂\(\uparrow\)+Cl₂\(\uparrow\)

H₂+Cl₂ \(\underrightarrow{t^o}\) 2HCl

MnO₂+4HCl\(\rightarrow\)MnCl₂+Cl₂\(\uparrow\)+2H₂O

2Fe+3Cl₂\(\rightarrow\)2FeCl₃

-Điều chế CuSO₄: Cu+2H₂SO_4(đ)\(\underrightarrow{t^o}\)CuSO₄+2H₂O+SO₂