Phosphoric Acid at a glance
| Property | Value |
|---|
| Molar mass | 97.994 g/mol |
|---|
| Molecular weight | 97.994 u |
|---|
| Chemical formula | H3PO4 |
|---|
| Monoisotopic mass | 97.9768956 u |
|---|
| CAS number | 7664-38-2 |
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| PubChem CID | 1004 |
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How to calculate the molar mass of phosphoric acid
3 × 1.008 + 1 × 30.974 + 4 × 15.999 = 97.994 g/mol
- Count the atoms in H3PO4: H 3, P 1, O 4.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 97.994 g/mol.
Elemental composition of phosphoric acid
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| H Hydrogen | 3 | 1.008 | 3.024 | 3.0859% |
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| P Phosphorus | 1 | 30.974 | 30.974 | 31.608% |
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| O Oxygen | 4 | 15.999 | 63.996 | 65.306% |
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Grams and moles of phosphoric acid
| Amount | Equals |
|---|
| 1 g | 0.010205 mol |
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| 10 g | 0.10205 mol |
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| 100 g | 1.0205 mol |
|---|
| 0.1 mol | 9.7994 g |
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| 1 mol | 97.994 g |
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| 1 g, in particles | 6.1454 × 10^21 |
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Calculate other compounds