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7 September, 04:03

Determine the moles of oxygen gas (O2) needed to completely react with 1.975 moles of hydrogen gas (H2).

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  1. 7 September, 06:30
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    0.9875 mole O₂

    Explanation:

    Rxn = > H₂ + ¹/₂O₂ = > H₂O

    from above reaction, 1 mol H₂ requires ¹/₂ mol O₂ then 1.975 mol H₂ requires ¹/₂ (1.975 mol) O₂ or 0.9875 mol O₂.
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