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    Combustion Reactions - Thermochemistry

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    1. A boiler burns fuel which has the following composition by mass: 82% carbon, 5% hydrogen, 6% oxygen and 7% ash.

    (a) Find the stoichiometric A/F ratio.

    If the dry analysis of the products yielded the following composition by volume: 13.2% carbon dioxide, 1.5% carbon monoxide, 6.8% oxygen and 78.5% nitrogen, calculate:

    (b) the actual A/F ratio (by mass),
    (c) the percentage excess air supplied,
    (d) the mixture strength

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    Solution Summary

    This solution is provided in 635 words in an attached .doc file. It uses calculations for a burning reaction and molar mass in order to find the A/F ratio. Step-by-step calculations are given to enhance understanding of the problem.