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    Combustion of hydrocarbons

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    Propane, C3H8, in a tank that is usually the size of a basketball is often used for grills.
    a) Write a balanced equation for the combustion of propane.
    b) Calculate the number of moles of oxygen required to burn 5000.0 g (11.0 lbs) of propane.
    c) Calculate the number of kilograms of O2 required to burn propane.

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    Solution Preview

    Use the general equation for balancing combustion reaction of hydrocarbons:
    (a) CxHy + (x+ y/4)O2 → xCO2 + y/2H2O
    In propane, x = 3, y = 8
    x + y/4 = 3 + 8/4 = 5
    y/2 = 8/2 = 4
    Balanced equation ...

    Solution Summary

    The solution writes a balanced questions for the combustion of hydrocarbons, number of moles and calculations of mass.