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CLEP Chemistry Practice Test

Category - Chemistry

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The chemical equation below represents sulfur trioxide (SO₃) in the atmosphere mixing with rainwater to form sulfuric acid (H₂SO₄), which is a major component of acid rain:

SO_3(g) + H₂O_(I) → H₂SO_4(I)

The molar mass of SO₃ is 80.1 g/mol and the molar mass of H₂SO₄ is 98.1 g/mol. How much H₂SO₄ is produced when 128.0 g of SO₃ mixes with rainwater?

98.1 g
105 g
128 g
157 g

Explanation

Answer: D - 157 g.

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