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10 April, 11:49

Water can be formed in the following reaction:

2H2+O2--->2H2O,

If you have 8 moles of Hydrogen gas (H2), how many moles of Oxygen gas (O2) will you need to make as much water as possible?

(Enter just the number; not the number and units)

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Answers (1)
  1. 10 April, 12:13
    0
    The moles of oxygen gas (O2) that is needed is 4 moles

    Explanation

    2H2 + O2 → 2H2O

    The moles of O2 is determined using the mole ratio of H2:O2

    that is from equation above H2:O2 is 2:1

    If the moles of H2 is 8 moles therefore the moles of O2

    = 8 moles x 1/2 = 4 moles
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