Exam Question 1

Sorry this is a little late, technology hates me!

(a). How much heat is evolved when 1 mole of propane is burned?
(b). What is the enthalpy of combustion per gram of propane?

Hf (CO2(g)) = -394kJ
Hf (H2O(l)) = -286 kJ
Hf (C3H8(g)) = -104kJ