Pyrite at a glance
| Property | Value |
|---|
| Molar mass | 119.965 g/mol |
|---|
| Molecular weight | 119.965 u |
|---|
| Chemical formula | FeS2 |
|---|
| Monoisotopic mass | 119.879079 u |
|---|
| CAS number | 1309-36-0 |
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| PubChem CID | 14788 |
|---|
How to calculate the molar mass of pyrite
1 × 55.845 + 2 × 32.06 = 119.965 g/mol
- Count the atoms in FeS2: Fe 1, S 2.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 119.965 g/mol.
Elemental composition of pyrite
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| Fe Iron | 1 | 55.845 | 55.845 | 46.551% |
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| S Sulfur | 2 | 32.06 | 64.12 | 53.449% |
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Grams and moles of pyrite
| Amount | Equals |
|---|
| 1 g | 0.0083358 mol |
|---|
| 10 g | 0.083358 mol |
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| 100 g | 0.83358 mol |
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| 0.1 mol | 11.997 g |
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| 1 mol | 119.97 g |
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| 1 g, in particles | 5.0199 × 10^21 |
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Calculate other compounds