Answer:
a. 0.37 mol SO₂
Step-by-step explanation:
The number of moles in a sample can be calculated by dividing the mass of the sample by its molar mass. In this case, the number of moles of SO₂ in a 23.8 g sample would be:
23.8 g SO₂ × (1 mol SO₂ / 64 g SO₂) = 0.37 mol SO₂
So the correct answer is (a) 0.37 mol SO₂.