# Question #296b3

Mar 30, 2017

864 g

#### Explanation:

The equation is: ${C}_{2} {H}_{5} O H + 3 {O}_{2} \to 2 C {O}_{2} + 3 {H}_{2} O$

So 2 moles of carbon dioxide are produced by 3 moles of oxygen. Therefore, for 18 moles of carbon dioxide, you need (18/2) x 3 = 27 moles.

Molar mass of oxygen gas is 32 g/mol, so you would need 27 x 32 = 864 g of oxygen