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21 August, 18:52

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?

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  1. 21 August, 22:23
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    3.0 moles.

    Explanation:

    It is a stichiometry problem. The chemical reaction of reacting hydrogen with oxygen to produce water is:

    H₂ + 1/2 O₂ → H₂O.

    It is clear that 1.0 mole of H₂ reacts with 0.5 mole of O₂ to produce 1.0 mole of water. The ratio of the reacting hydrogen to the produced water is 1:1.

    ∴ The number of moles of water created from reacting 3.0 moles of hydrogen completely with excess oxygen = 3.0 moles.
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