Question

How many moles of h2so4 will be produced from 8.21 moles of fes2?

Answer 1

Answer:

16.4 mol

Explanation:

H₂SO₄ can be produced from FeS₂ in 3 steps:

Step 1: 4 FeS₂ + 11 O₂ → 2 Fe₂O₃ + 8 SO₂

Step 2: 2 SO₂ + O₂ → 2 SO₃

Step 3: SO₃ + H₂O → H₂SO₄

We can establish the following relations:

• According to Step 1, the molar ratio of FeS₂ to SO₂ is 4:8.
• According to Step 2, the molar ratio of SO₂ to SO₃ is 2:2.
• According to Step 3, the molar ratio of SO₃ to H₂SO₄ is 1:1.

The moles of H₂SO₄ produced from 8.21 moles of FeS₂ are:

$8.21molFeS_{2}.\frac{8molSO_{2}}{4molFeS_{2}} .\frac{2molSO_{3}}{2molSO_{2}} .\frac{1molH_{2}SO_{4}}{1molSO_{3}} =16.4molH_{2}SO_{4}$

Answer 2

Well, if the coefficients are both 1, then you will make 8.21 moles.

See the equation is:

x moles= (8.21mol FeS₂)×(1 mole H₂SO₄ ÷ 1 mole FeS₂) = 8.21 moles H₂SO₄

So if you change the coefficients of the equation, your product will be a different number.

Example:
x moles= (8.21mol FeS₂)×(2 mole H₂SO₄ ÷ 1 mole FeS₂) = 16.4 moles H₂SO₄

I hope this helps you out!
Brady