Argon at a glance
| Property | Value |
|---|
| Molar mass | 39.9 g/mol |
|---|
| Molecular weight | 39.9 u |
|---|
| Chemical formula | Ar |
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| CAS number | 7440-37-1 |
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| PubChem CID | 23968 |
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How to calculate the molar mass of argon
1 × 39.9 = 39.9 g/mol
- Count the atoms in Ar: Ar 1.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 39.9 g/mol.
Elemental composition of argon
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| Ar Argon | 1 | 39.9 | 39.9 | 100% |
|---|
Grams and moles of argon
| Amount | Equals |
|---|
| 1 g | 0.025063 mol |
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| 10 g | 0.25063 mol |
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| 100 g | 2.5063 mol |
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| 0.1 mol | 3.99 g |
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| 1 mol | 39.9 g |
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| 1 g, in particles | 1.5093 × 10^22 |
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Calculate other compounds