Molar Mass of FeH8N2O8S2 (Ferrous Ammonium Sulfate)
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What is the molar mass of FeH8N2O8S2?
Answer
M(FeH8N2O8S2) ≈
284.04 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.
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Feiron | 1 | 55.845 | 55.845 w ≈ 19.66% | ≈ 19.66% |
| Hhydrogen | 8 | 1.0080 | 8.0640 w ≈ 2.84% | ≈ 2.84% |
| Nnitrogen | 2 | 14.007 | 28.014 w ≈ 9.86% | ≈ 9.86% |
| Ooxygen | 8 | 15.999 | 127.992 w ≈ 45.06% | ≈ 45.06% |
| Ssulfur | 2 | 32.06 | 64.12 w ≈ 22.57% | ≈ 22.57% |
| Σ = 284.035 ≈ 284.04 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 45.06%
S 22.57%Fe 19.66%N 9.86%H 2.84%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| MgI₂ (magnesium iodide) | 278.11 |
| C₁₈H₃₄O₂ (oleic acid) | 282.468 |
| P₄O₁₀ (phosphorus pentoxide) | 283.886 |
| FeH₈N₂O₈S₂ (ferrous ammonium sulfate) | 284.04 |
| C₁₈H₃₆O₂ (stearic acid) | 284.484 |
| Na₂CO₃·10H₂O (sodium carbonate decahydrate) | 286.138 |
| ZnSO₄·7H₂O (zinc sulfate heptahydrate) | 287.54 |