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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 structural formula shown in the figure. The complete combustion of one mole of this compound to CO2(g) and H2O(g) leads to Delta H = -5064.9 kJ/mol

By using the information in this problem and data from Appendix C, calculate Delta H for 2,3,4-trimethylpentane.

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