Enthalpy of reaction problem? Please help?
Can you please help me?? I am so lost on how to solve this, and would love to see exactly how to do it. I know you have to break up the compounds into ions if they are aq, but not much else. In addition, I don't have a Hf value for NO3, so is that something you look up or have to memorize? Anyways, here is the question:
Using the values for ?Hf, determine the ?H(enthalpy) for the following reaction: Na2CO3 (aq) + Mg(NO3)2 (aq) → 2 NaNO3 (aq) + MgCO3 (s)
Substance (state) Hf (kJ/mol)
Na+ (aq) -240.1
Cl- (aq) -167.2
MgCO3 (s) -1096
Mg+2 (aq) -466.9
CO3 2- (aq) -677.1
Thank you so much! I really want to learn what to do!