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17 April, 03:22

When 21.3 moles of c3h8 burn in excess oxygen how many moles of co2 will be formed?

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  1. 17 April, 07:10
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    63.9moles

    Explanation:

    Given parameters:

    Number of moles of C₃H₈ = 21.3moles

    Unknown parameter:

    Number of moles of CO₂ produced = ?

    Solution

    In order to find the number of moles of carbon dioxide produced we must first write the balanced reaction equation.

    This reaction is a combustion of hydrocarbon reaction. It usually occurs in the presence of excess oxygen gas and the product is water and carbon dioxide.

    The reaction equation is shown below:

    C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

    From the equation:

    1 mole of C₃H₈ produced 3 moles of CO₂

    Therefore, 21.3 moles of C₃H₈ will produce (21.3 x 3) moles of CO₂

    The number of mole of carbon dioxide produced is 63.9moles
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