What is the mass of 0.20 mol of sulphuric acid, H₂SO₄ (H = 1, S = 32, O = 16)?
Correct answer B. 19.6 g
Explanation
Molar mass of H₂SO₄ = 2 + 32 + 64 = 98 g mol⁻¹. Mass = 0.20 × 98 = 19.6 g.
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