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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

Respuesta :

The answer is C, 159.70g

Answer:

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 , [tex]Fe_2O_3[/tex]:

[tex]2\times 55.845 g/mol+3\times 15.999 g/mol=159.687 g/mol[/tex]

159.687 g/mol ≈ 159.70 g/mol

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

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