Iron(II) Chloride at a glance
| Property | Value |
|---|
| Molar mass | 126.745 g/mol |
|---|
| Molecular weight | 126.745 u |
|---|
| Chemical formula | FeCl2 |
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| Monoisotopic mass | 125.872642 u |
|---|
| CAS number | 7758-94-3 |
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| PubChem CID | 24458 |
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How to calculate the molar mass of iron(II) chloride
1 × 55.845 + 2 × 35.45 = 126.745 g/mol
- Count the atoms in FeCl2: Fe 1, Cl 2.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 126.745 g/mol.
Elemental composition of iron(II) chloride
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| Fe Iron | 1 | 55.845 | 55.845 | 44.061% |
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| Cl Chlorine | 2 | 35.45 | 70.9 | 55.939% |
|---|
Grams and moles of iron(II) chloride
| Amount | Equals |
|---|
| 1 g | 0.0078899 mol |
|---|
| 10 g | 0.078899 mol |
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| 100 g | 0.78899 mol |
|---|
| 0.1 mol | 12.675 g |
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| 1 mol | 126.75 g |
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| 1 g, in particles | 4.7514 × 10^21 |
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