Molar Mass of Cr2O3 (Dichromium Trioxide)
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What is the molar mass of Cr2O3?
Answer
M(Cr2O3) =
151.989 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024).
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Crchromium | 2 | 51.996 | 103.992 w ≈ 68.42% | ≈ 68.42% |
| Ooxygen | 3 | 15.999 | 47.997 w ≈ 31.58% | ≈ 31.58% |
| Σ = 151.989 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
Cr 68.42%
O 31.58%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| C₈H₉NO₂ (paracetamol) | 151.165 |
| FeSO₄ (iron(II) sulfate) | 151.90 |
| Eu (europium) | 151.96 |
| Cr₂O₃ (dichromium trioxide) | 151.989 |
| C₈H₈O₃ | 152.149 |
| C₁₀H₁₆O (camphor) | 152.237 |
| BaO (barium oxide) | 153.33 |