how many moles of SO2 are needed to make 3 moles of SO3?
To determine how many moles of SO2 are needed to make 3 moles of SO3, you would have to use the balanced chemical equation for the reaction between SO2 and O2 to produce SO3. The balanced equation is:
2 SO2 + O2 -> 2 SO3
From the equation, you can see that it takes 2 moles of SO2 to produce 2 moles of SO3. This means that the ratio of SO2 to SO3 is 1:1, which can be simplified.
Therefore, if you want to produce 3 moles of SO3, you would need an equal number of moles of SO2. Hence, you would need 3 moles of SO2 to produce 3 moles of SO3.