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28 April, 20:55

8. If I have 34 grams of FeO, how many grams of Oxygen were synthesized?

Fe + O2 → Feo

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Answers (1)
  1. 29 April, 00:03
    0
    34 gram of FeO produced 8 gram of oxygen.

    Explanation:

    Given dа ta:

    Mass of FeO = 34 g

    Mass of oxygen = ?

    Solution;

    Chemical equation:

    2FeO → 2Fe + O₂

    Number of moles of FeO:

    Number of moles = mass / molar mass

    Number of moles = 34 g / 71.8 g/mol

    Number of moles = 0.5 mol

    Now we will compare the moles of FeO with oxygen:

    FeO : O₂

    2 : 1

    0.5 : 1/2 * 0.5 = 0.25

    Mass of oxygen:

    Mass = number of moles * molar mass

    Mass = 0.25 mol * 32 g/mol

    Mass = 8 g

    So 34 gram of FeO produced 8 gram of oxygen.
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