How many moles of O2 are needed to react with 1.5 moles of SO2?
To determine the number of moles of O2 that are needed to react with 1.5 moles of SO2, we need to look at the balanced chemical equation for the reaction between SO2 and O2.
The balanced chemical equation for this reaction is:
2 SO2 + O2 → 2 SO3
From this equation, we can see that 2 moles of SO2 react with 1 mole of O2 to produce 2 moles of SO3.
However, we only have 1.5 moles of SO2. So we need to figure out how many moles of O2 will react with 1.5 moles of SO2. We can set up a proportion to solve for this.
Using the proportion:
(1 mole O2) / (2 moles SO2) = (x moles O2) / (1.5 moles SO2)
Cross-multiplying and solving for x, we get:
x = (1.5 moles SO2) * (1 mole O2) / (2 moles SO2)
= 0.75 moles O2
Therefore, 0.75 moles of O2 are needed to react with 1.5 moles of SO2.