Question

Help!: Determine the mass of oxygen that can be removed from 25.0 grams of Fe2O3?

Answer 1

7.5g

Explanation:

Given parameters:

Mass of Fe₂O₃ = 25g

Unknown:

Mass of oxygen that can be removed  = ?

Solution:

Find the ratio of the oxygen atoms to that of the compound using the molar mass. Then multiply with the given mass.

   Mass of oxygen = $\frac{molar mass of oxgygen}{molar mass of [tex]Fe_{2}O_{3}$}[/tex]  x given mass

  Mass of oxygen = $\frac{3 x 16}{160}$ x 25 = 7.5g

Learn more:

Percentage composition brainly.com/question/8654167

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