Question

5. Balance the given
equation: Fe + H2SO4 ----->
Fe2(SO4)3 +
H2O + SO2​

Answer 1

Answer:

2Fe + 6H2SO4 → Fe2(SO4)3 + 3SO2 + 6H2O

Answer 2

Answer:-

2Fe + 6H₂SO₄ → Fe₂(SO₄)₃ + 6H₂O + 3SO₂

Explanation:-

The given chemical equation is :-

Fe + H₂SO₄ → Fe₂(SO₄)₃ + H₂O + SO₂

There are many methods of balancing a chemical equation. In this case, we will use algebraic method to balance this equation.

Firsltly, let's rewrite the equation using letter variables for the coefficients :

aFe +bH₂SO₄ → cFe₂(SO₄)₃ + dH₂O + eSO₂

Now, we will set a series of simultaneous equations, one for each element :

=> Fe : a = 2c

=> H : 2b = 2d

=> S : b = 3c + e

=> O : 4b = 12c + d + 2e

Let, c = 1

Then, a = 2

On solving the next three equations we get :-

→ b = 6, d = 6, e = 3

Thus, the balanced equation is :-

2Fe +6H₂SO₄ → Fe₂(SO₄)₃ +6H₂O + 3SO₂