Given the Following Data, Calculate How Many Liters of Gas

Multiple Choice

Given the following data, calculate how many liters of gas are produced in the combustion of one gram of butane, C₄H₁₀. Report your result in L/g and assume STP.
Standard heats of formation (kJ/mole) :
H₂O(g) : -241.82
CO₂(g) : -393.5
Butane: -147.6
Formula weight of butane: 58.12 g/mole
L/mole of a gas at STP: 22.4L

A) 7.2
B) 3.5
C) 12.8
D) 17.1
E) none of the above