Iron forms rust, expressed as: fe2o3. using information from the periodic table, what is the mass of one mole of fe2o3?
a.
71.85 g
b.
143.70 g
c.
159.70 g
d.
319.40 g

The correct answer is option C.

Explanation:

Atomic mass of iron =  55.845 g/mol

Atomic mass of oxygen = 15.999 g/mol

Mass of 1 mole of iron(III) oxide , :

159.687 g/mol ≈ 159.70 g/mol

159.70 g/mol is the mass of one mole of iron(III) oxide.