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27 July, 16:25

A major component of gasoline is octane C8H18. When liquid octane is burned in air it reacts with oxygen O2 gas to produce carbon dioxide gas and water vapor. Calculate the moles of carbon dioxide produced by the reaction of 0.085mol of oxygen. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.

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  1. 27 July, 17:46
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    0.054 moles of carbon dioxide will be produced

    Explanation:

    Step 1: Data given

    Number of moles oxygen = 0.085 moles

    Step 2: The balanced equation

    2C8H18 + 25O2 → 16CO2 + 18H2O

    Step 3: Calculate moles of carbon dioxide

    For 2 moles octane we need 25 moles oxygen gas to produce 16 moles carbon dioxide gas and 18 moles water vapor

    0.0544

    For 0.085 moles O2 we'll have 16/25 * 0.085 = 0.054 moles CO2

    0.054 moles of carbon dioxide will be produced
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