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21 March, 06:01

How many moles of water will be produced when 8 moles of ethane are burned?

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  1. 21 March, 08:32
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    The number of moles of water will be produced when 8.0 moles of ethane are burned = 24.0 mol.

    Explanation:

    It is a stichiometry problem. The balanced equation of burning ethane is:

    2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

    It is clear that 2.0 moles of ethane (C₂H₆) burns in 7.0 moles of oxygen and produce 4.0 moles of CO₂ and 6.0 moles of H₂O.

    Using cross multiplication:

    2.0 moles of ethane produces → 6.0 moles of H₂O, from the stichiometry.

    8.0 moles of ethane produces →? moles of H₂O.

    ∴ The number of moles of water will be produced when 8.0 moles of ethane are burned = (6.0 x 8.0) / (2.0) = 24.0 mol.
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