Oxalic Acid at a glance
| Property | Value |
|---|
| Molar mass | 90.034 g/mol |
|---|
| Molecular weight | 90.034 u |
|---|
| Chemical formula | H2C2O4 |
|---|
| Monoisotopic mass | 89.9953085 u |
|---|
| CAS number | 144-62-7 |
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| PubChem CID | 971 |
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How to calculate the molar mass of oxalic acid
2 × 1.008 + 2 × 12.011 + 4 × 15.999 = 90.034 g/mol
- Count the atoms in H2C2O4: H 2, C 2, O 4.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 90.034 g/mol.
Elemental composition of oxalic acid
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| H Hydrogen | 2 | 1.008 | 2.016 | 2.2392% |
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| C Carbon | 2 | 12.011 | 24.022 | 26.681% |
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| O Oxygen | 4 | 15.999 | 63.996 | 71.08% |
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Grams and moles of oxalic acid
| Amount | Equals |
|---|
| 1 g | 0.011107 mol |
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| 10 g | 0.11107 mol |
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| 100 g | 1.1107 mol |
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| 0.1 mol | 9.0034 g |
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| 1 mol | 90.034 g |
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| 1 g, in particles | 6.6887 × 10^21 |
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Calculate other compounds