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Solved: Gasoline is composed primarily of hydrocarbons,
Chapter , Problem 5.77(choose chapter or problem)
Gasoline is composed primarily of hydrocarbons, including many with eight carbon atoms, called octanes. One of the cleanestburning octanes is a compound called 2,3,4-trimethylpentane, which has the following structural formula: H3C CH CH CH CH3 CH3 CH3 CH3 The complete combustion of one mole of this compound to CO21g2 and H2O1g2 leads to H = -5064.9 kJ>mol. (a) Write a balanced equation for the combustion of 1 mol of C8H181l2. (b) By using the information in this problem and data in Table 5.3, calculate Hf for 2,3,4-trimethylpentane.
Questions & Answers
QUESTION:
Gasoline is composed primarily of hydrocarbons, including many with eight carbon atoms, called octanes. One of the cleanestburning octanes is a compound called 2,3,4-trimethylpentane, which has the following structural formula: H3C CH CH CH CH3 CH3 CH3 CH3 The complete combustion of one mole of this compound to CO21g2 and H2O1g2 leads to H = -5064.9 kJ>mol. (a) Write a balanced equation for the combustion of 1 mol of C8H181l2. (b) By using the information in this problem and data in Table 5.3, calculate Hf for 2,3,4-trimethylpentane.
ANSWER:Problem 5.77Gasoline is composed primarily of hydrocarbons, including many with eight carbon atoms,called octanes. One of the cleanest burning octanes is a compound called2,3,4-trimethylpentane, which has the following structural formula:The complete combustion of one mole of this compound to CO (g) and H O(g) lead2to H° = 2-5064.9 kJ/mol.(a) Write a balanced equation for the combustion of 1 mol of C H (l). 8 18(b) By using the information in this problem and data in Table 5.3, calculate Hf° for2,3,4-trimethylpentane. Step-by-step solution Step 1 of 4A balanced chemical equation is concerned about the stoichiometry of reactions. In a balancedchemical equation, if there are a few numbers of moles of any element on the reactant side thenthe same amount of moles of that atom must be present on the product side.