Answer: The moles of carbon dioxide formed in the reaction is 20 moles.
Explanation:
We are given:
Number of moles of butane = 5.0 moles
The chemical reaction for the combustion of butane follows the equation:
[tex]2C_4H_{10}(g)+13O_2(g)\rightarrow 8CO_2(g)+10H_2O(l)[/tex]
As, oxygen is present in excess. So, it is considered as an excess reagent.
Thus, butane is considered as a limiting reagent because it limits the formation of products.
By stoichiometry of the reaction:
2 moles of butane produces 8 moles of carbon dioxide.
So, 5 moles of butane will produce = [tex]\frac{8}{2}\times 5=20mol[/tex] of carbon dioxide.
Hence, the moles of carbon dioxide formed in the reaction is 20 moles.