Molar Mass of Fe2(SO4)3 (Ferric Sulfate)
Molar Mass Calculator
What is the molar mass of Fe2(SO4)3?
Answer
M(Fe2(SO4)3) ≈
399.86 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — S: 32.06.
Fe2(SO4)3 = 2 Fe + 3 × (S + 4 O) → Fe 2, S 3, O 12
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Feiron | 2 | 55.845 | 111.690 w ≈ 27.93% | ≈ 27.93% |
| Ssulfur | 3 | 32.06 | 96.18 w ≈ 24.05% | ≈ 24.05% |
| Ooxygen | 12 | 15.999 | 191.988 w ≈ 48.01% | ≈ 48.01% |
| Σ = 399.858 ≈ 399.86 g/mol w = 100% | 100% | |||
Each fraction is rounded on its own, so the printed ones add up to 99.99%; unrounded, they make exactly 100%.
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
O 48.01%
Fe 27.93%S 24.05%
Found an error in the calculation or the information?
Related Calculations
See Also
- Liters to Kilograms - How many kilograms are in a liter of water, honey, gasoline, sand and other substances — by density
- Grams to Kg - Convert Grams to Kilograms
- Percentage Calculator: Fraction to Percent - What percentage one number is of another? Convert fraction into a percentage
- Scientific Calculator with Memory & History - Free Engineering Calculator Online with Memory Function, Operation History, Logarithms & Trigonometry. Similar to ti-83, ti-84, ti-89
Share This Calculation
Print
<a href="https://calculat.io/en/other/molar-mass/fe2%28so4%293">Molar Mass of Fe2(SO4)3 (Ferric Sulfate): Step by Step</a>Facebook
Twitter
Telegram
WhatsApp
Viber
Email
Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| Cr₂(SO₄)₃ (chromium(III) sulfate) | 392.16 |
| CHI₃ (iodoform) | 393.72 |
| C₁₂H₁₉Cl₃O₈ (sucralose) | 397.63 |
| Fe₂(SO₄)₃ (ferric sulfate) | 399.86 |
| AlI₃ (aluminum iodide) | 407.68 |
| C₁₂H₂₂CaO₁₄ (calcium gluconate) | 430.372 |
| HgI₂ (mercury(II) iodide) | 454.39 |