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Balance the combustion reaction of chrysene (C18H12) at 298K.

C18H12(s)+  O2(g)   CO2(g) +  H2O(l)

What is the value of ng for the combustion reaction? 

ng =  mol

What is Hcomb of chrysene if Ecomb = -8942.6 kJ/mol?

Hcomb =  kJ/mol

What is the heat of formation of chrysene? 

Hf =  kJ/mol

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