Explanation:
Given the following equation, we have to find the possible molar ratios.
S₈ + 12 O₂ ----> 8 SO₃
If we pay attention to the coefficients we can read the equation like this: 1 mol of S₈ will react with 12 moles of O₂ to produce 8 moles of SO₃. So the molar ratios between S₈, O₂ and SO₃ are 1 to 12 to 8.
1 mol of S₈ : 12 moles of O₂ : 8 moles of SO₃ molar ratios
If we consider the four options that we are given:
1 mol of S₈/12 moles of O₂ ---> correct
12 moles of S₈/1 mol of O₂ ---> incorrect
8 moles of SO₃/1 mol of S₈ ----> correct
1 mol of S₈/8 moles of SO₃ ----> correct
Answer:
1 mol of S₈/12 moles of O₂
8 moles of SO₃/1 mol of S₈
1 mol of S₈/8 moles of SO₃
