Molar Mass of Cr2(SO4)3 (Chromium(III) Sulfate)
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What is the molar mass of Cr2(SO4)3?
Answer
M(Cr2(SO4)3) =
392.16 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024).
Cr2(SO4)3 = 2 Cr + 3 × (S + 4 O) → Cr 2, S 3, O 12
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Crchromium | 2 | 51.996 | 103.992 w ≈ 26.52% | ≈ 26.52% |
| Ssulfur | 3 | 32.06 | 96.18 w ≈ 24.53% | ≈ 24.53% |
| Ooxygen | 12 | 15.999 | 191.988 w ≈ 48.96% | ≈ 48.96% |
| Σ = 392.16 g/mol w = 100% | 100% | |||
Each fraction is rounded on its own, so the printed ones add up to 100.01%; unrounded, they make exactly 100%.
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
O 48.96%
Cr 26.52%S 24.53%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| Na₂B₄O₇·10H₂O | 381.36 |
| Zn₃(PO₄)₂ (zinc phosphate) | 386.08 |
| BaI₂ (barium iodide) | 391.13 |
| Cr₂(SO₄)₃ (chromium(III) sulfate) | 392.16 |
| CHI₃ (iodoform) | 393.72 |
| C₁₂H₁₉Cl₃O₈ (sucralose) | 397.63 |
| Fe₂(SO₄)₃ (ferric sulfate) | 399.86 |