Talc at a glance
| Property | Value |
|---|
| Molar mass | 379.259 g/mol |
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| Molecular weight | 379.259 u |
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| Chemical formula | Mg3Si4O10(OH)2 |
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| Monoisotopic mass | 377.817457 u |
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| CAS number | 14807-96-6 |
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| PubChem CID | 165411828 |
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How to calculate the molar mass of talc
3 × 24.305 + 4 × 28.085 + 12 × 15.999 + 2 × 1.008 = 379.259 g/mol
- Count the atoms in Mg3Si4O10(OH)2: Mg 3, Si 4, O 12, H 2.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 379.259 g/mol.
Elemental composition of talc
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| Mg Magnesium | 3 | 24.305 | 72.915 | 19.226% |
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| Si Silicon | 4 | 28.085 | 112.34 | 29.621% |
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| O Oxygen | 12 | 15.999 | 191.988 | 50.622% |
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| H Hydrogen | 2 | 1.008 | 2.016 | 0.53156% |
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Grams and moles of talc
| Amount | Equals |
|---|
| 1 g | 0.0026367 mol |
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| 10 g | 0.026367 mol |
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| 100 g | 0.26367 mol |
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| 0.1 mol | 37.926 g |
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| 1 mol | 379.26 g |
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| 1 g, in particles | 1.5879 × 10^21 |
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Calculate other compounds