Chapter 9, Problem 9.56AQAP

Gasohol is a fuel that contains ethanol $\left(C_2{H}_{6}O\right)$ that bums in oxygen $\left(O_2\right)$ to give carbon dioxide and water. (9.2, 9.3)

$C_2{H}_{6}O\left(g\right)+3O_2\left(g\right)\underset{\to }{\Delta }2C{O}_2\left(g\right)+3H_{2}O\left(g\right)$

1. How many moles of $O_2$ are needed to completely react with 4.0 mol of $C_2{H}_{6}O$?
2. If a car produces 88 g of $C{O}_2$ , how many grams of $O_2$ are used up in the reaction?
3. If you add 125 g of $C_2{H}_{6}O$ to your fuel, how many grams of $C{O}_2$ can be produced from the ethanol?