Using the following equations, determine Δ Δ H (in kJ) for the following reaction: C3H8(g) + 5O2(g) → → 3CO2(g) + 4H2O(g) 3C(s) + 4H2(g) → → C3H8(g), Δ Δ H = -103.8 kJ C(s) + O2(g) → → CO2(g), Δ Δ H = -393.5 kJ H2(g) + 1/2O2(g) → → H2O(g) , Δ Δ H = -241.8 kJ

If 4.8 moles of x and 3.4 moles of y react according to the reaction below, how many moles of the excess reactant will be left over at the end of the reaction? 3x + 2y “yields”/ x3y2. a. 1.7 mol y left over b. 1.6 mol x left over c. 0.2 mol y left over d. 0.1 mol x left over