[feggyarini]

During glycolysis, glucose is partially oxidized to
pyruvic acid, CH3COCOOH, by NAD⁺ (see
Chapter 4) without the involvement of O2.
However, it is also possible to carry out the
oxidation in the presence of O2:
C6H12O6(s) + O2(g)  2 CH3COCOOH(s)
+ 2 H2O(l)
ΔrHΔθ  =  ─ 480,7 kJ mol─1
From these data and additional information in
the Data section, calculate the standard enthalpy
of combustion and standard enthalpy of
formation of pyruvic acid.

I need your help right now to finish my homework. Pls 

[mjc123]

Dear Feggyarini
Have you read the forum rules? (in red at the top: Forum Rules: Read This Before Posting)
Please give your posts an informative title, e.g. "oxidation of glucose". Most posts are created because someone wants help with a problem, no need to say it.
We're not here to do your homework for you. Forum rules require that you show your working before receiving help. If we can see what you know and where you went wrong, that helps us to help you.
Don't demand help "right now". Most of us are busy people who look in at the forum when we can. We're not at your beck and call.
Finally, we can't solve your problem because there isn't enough information. We haven't got Chapter 4 and the "additional information in the Data section". We're not psychic.

Sorry about the rant, you're not the only one who does these things, but it needs saying.

Now, can you show us what you have done to attempt to solve the problem?