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Solution: Gasoline is composed primarily of hydrocarbons, including ma...

Question

Gasoline is composed primarily of hydrocarbons, including many with eight carbon atoms, called octanes. One of the cleanest-burning octanes is a compound called 2,3,4-trimethylpentane, which has the following structural formula. 

The complete combustion of one mole of this compound to CO 2(g) and H2O(g) leads to ΔH° = -5064.9 kJ/mol. (b) Write a balanced equation for the formation of C8H18(l) from its elements.