How many moles of O2 are needed to make 1.98 moles of SO3?
To determine the number of moles of O2 needed to produce a certain number of moles of SO3, we can use the balanced chemical equation for the reaction between SO2 and O2 to form SO3:
2 SO2 + O2 → 2 SO3
According to the balanced equation, it takes 1 mole of O2 to produce 2 moles of SO3. Therefore, using this ratio, we can calculate the number of moles of O2 needed to produce 1.98 moles of SO3.
1 mole O2 corresponds to 2 moles SO3
Therefore, to determine the number of moles of O2 needed to produce 1.98 moles of SO3, we can set up a ratio:
(1.98 moles SO3) x (1 mole O2 / 2 moles SO3) = 0.99 moles O2
So, you would need approximately 0.99 moles of O2 to produce 1.98 moles of SO3.