Molar Mass of Al(OH)3 (Aluminum Hydroxide)
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What is the molar mass of Al(OH)3?
Answer
M(Al(OH)3) =
78.003 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024).
Al(OH)3 = Al + 3 × (O + H) → Al 1, O 3, H 3
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Alaluminium | 1 | 26.982 | 26.982 w ≈ 34.59% | ≈ 34.59% |
| Ooxygen | 3 | 15.999 | 47.997 w ≈ 61.53% | ≈ 61.53% |
| Hhydrogen | 3 | 1.0080 | 3.0240 w ≈ 3.88% | ≈ 3.88% |
| Σ = 78.003 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
O 61.53%
Al 34.59%H 3.88%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| C₃H₈O₂ ((RS)-propylene glycol) | 76.095 |
| CS₂ (carbon disulfide) | 76.13 |
| CH₃COONH₄ (ammonium acetate) | 77.083 |
| Al(OH)₃ (aluminum hydroxide) | 78.003 |
| Na₂S (sodium sulfide) | 78.04 |
| CaF₂ (calcium fluoride) | 78.074 |
| H₂SiO₃ (metasilicic acid) | 78.098 |