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Using the equation 4Fe + 3O2 -> 2Fe2O3, calculae the total mass of oxgen needed to react wih all of 0.55 g of iron.

  • Chemistry -

    mols Fe = grams/molar mass = ?
    mols O2 = ? mols Fe x (3 mol O2/4 mol Fe) = ?
    ?mols O2 x molar mass O2 = grams O2.

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