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Hydrogen sulfide gas (H₂S) burns in oxygen gas to produce sulfur dioxide and water vapor. if you need to make 216 g of sulfur dioxide, how many grams of oxygen gas would be consumed?

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Final answer:

To produce 216 grams of sulfur dioxide, you would need to consume approximately 161.92 grams of oxygen gas, calculated through stoichiometric relationships based on the balanced chemical equation.

Step-by-step explanation:

The reaction of hydrogen sulfide gas (H₂S) with oxygen (O₂) to produce sulfur dioxide (SO₂) and water vapor is a combustion reaction. To determine how many grams of oxygen gas would be consumed to produce 216 grams of sulfur dioxide, we can use stoichiometry based on the balanced chemical equation:

2H₂S(g) + 3O₂(g) → 2SO₂(g) + 2H₂O(g)

From the balanced equation, we see that 2 moles of SO₂ are produced from 3 moles of O₂.

First, we need to calculate the moles of SO₂ produced from 216 grams:

  • Molar mass of SO₂ = 32.07 (S) + 2(16.00) (O) = 64.07 g/mol
  • Moles of SO₂ = 216 g / 64.07 g/mol ≈ 3.37 moles SO₂

Now, we use the stoichiometric ratios to calculate the moles of oxygen gas needed:

  • Moles of O₂ required = (3 moles O₂ / 2 moles SO₂) × 3.37 moles SO₂ ≈ 5.06 moles O₂

Finally, we calculate the grams of O₂ from the moles:

  • Molar mass of O₂ = 2(16.00) = 32.00 g/mol
  • Grams of O₂ = 5.06 moles O₂ × 32.00 g/mol = 161.92 grams O₂

Therefore, approximately 161.92 grams of oxygen gas will be consumed to produce 216 grams of sulfur dioxide.

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