Forgot my book at school help with this question? enthalpy chemistry

Part A
What is ΔH∘rxn for the following chemical reaction?
H2O(l)+CCl4(l)→COCl2(g)+2HCl(g)
You can use the following table of standard heats of formation (ΔH∘f) to calculate the enthalpy of the given reaction:

http://i190.photobucket.com/albums/z119/CaptinDrake/chem_zpsb0352662.png

I need the answer to three sig figs and the proper units please and thank you. c:

You are going to use Hess's Law : ΔHproducts-ΔHreactants=ΔHrxn

[(COCl2 + 2HCl)] + [(H2O + CCl4)]

[-218.8+ 2(-92.30)]-[ -285.8 + -139.5] = 21.9 kJ