Kaolinite at a glance
| Property | Value |
|---|
| Molar mass | 258.157 g/mol |
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| Molecular weight | 258.157 u |
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| Chemical formula | Al2Si2O5(OH)4 |
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| Monoisotopic mass | 257.902462 u |
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| CAS number | 1318-74-7 |
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| PubChem CID | 71300855 |
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How to calculate the molar mass of kaolinite
2 × 26.982 + 2 × 28.085 + 9 × 15.999 + 4 × 1.008 = 258.157 g/mol
- Count the atoms in Al2Si2O5(OH)4: Al 2, Si 2, O 9, H 4.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 258.157 g/mol.
Elemental composition of kaolinite
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| Al Aluminum | 2 | 26.982 | 53.964 | 20.904% |
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| Si Silicon | 2 | 28.085 | 56.17 | 21.758% |
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| O Oxygen | 9 | 15.999 | 143.991 | 55.777% |
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| H Hydrogen | 4 | 1.008 | 4.032 | 1.5618% |
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Grams and moles of kaolinite
| Amount | Equals |
|---|
| 1 g | 0.0038736 mol |
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| 10 g | 0.038736 mol |
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| 100 g | 0.38736 mol |
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| 0.1 mol | 25.816 g |
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| 1 mol | 258.16 g |
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| 1 g, in particles | 2.3327 × 10^21 |
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