Molar Mass of Fe2O3 (Iron(III) Oxide)
Molar Mass Calculator
What is the molar mass of Fe2O3?
Answer
M(Fe2O3) =
159.687 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024).
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Feiron | 2 | 55.845 | 111.690 w ≈ 69.94% | ≈ 69.94% |
| Ooxygen | 3 | 15.999 | 47.997 w ≈ 30.06% | ≈ 30.06% |
| Σ = 159.687 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
Fe 69.94%
O 30.06%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| SrCl₂ (strontium chloride) | 158.52 |
| Tb (terbium) | 158.93 |
| CuSO₄ (cupric sulfate) | 159.60 |
| Fe₂O₃ (iron(III) oxide) | 159.687 |
| Br₂ (bromine) | 159.808 |
| KC₆H₅CO₂ (potassium benzoate) | 160.213 |
| ZnSO₄ (zinc sulfate) | 161.44 |