AP Chemistry Homework?

Posted on 2015-01-06 06:29:00 in Chemistry by MIKE

The heat of combustion of decahydronaphthalene (C10H18) is -6286 kJ/mol. The heat of combustion of naphthalene (C10H8) is -5157 kJ/mol. (In both cases CO2(g) and H2O(l) are the products.) Using these data and data in Appendix C, calculate the heat of hydrogenation of naphthalene.
Answer in kJ

Why does this value provide evidence for aromatic character in naphthalene?

Give the general formula for any dialkene; that is, a straight-chain hydrocarbon with two double bonds along the chain. (Use "n" to denote the variable number of carbon atoms.)

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