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Many cigarette lighters contain liquid butane, C4H10(l). Using standard enthalpies of formation, calculate the quantity of heat produced when 2.7 g of butane is completely combusted in air under standard conditions.

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3 answers
  1. I assume you have a set of tables.
    delta Hrxn = (delta Hproducts)-(delta H reactants).
    Then delta Hrxn x (2.7/molar mass C4H10).

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