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12 December, 20:01

3. In the formation of acid rain, sulfur dioxide reacts with oxygen and water in the air to form sulfuric acid. Write a balanced chemical equation for the reaction. If 2.50 g sulfur dioxide react with excess oxygen gas and water, how many grams of sulfuric acid are produced

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  1. 12 December, 23:08
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    SO₂ + 0.5 O₂ + H₂O → H₂SO₄

    3.83 g

    Explanation:

    In the formation of acid rain, sulfur dioxide reacts with oxygen and water in the air to form sulfuric acid. The balanced chemical equation is:

    SO₂ + 0.5 O₂ + H₂O → H₂SO₄

    The molar mass of SO₂ is 64.07 g/mol. The moles of SO₂ corresponding to 2.50 g are:

    2.50 g * (1 mol/64.07 g) = 0.0390 mol

    The molar ratio of SO₂ to H₂SO₄ is 1:1. The moles of H₂SO₄ formed are 0.0390 moles.

    The molar mass of H₂SO₄ is 98.08 g/mol. The mass of H₂SO₄ is:

    0.0390 mol * 98.08 g/mol = 3.83 g
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