Phenolphthalein at a glance
| Property | Value |
|---|
| Molar mass | 318.328 g/mol |
|---|
| Molecular weight | 318.328 u |
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| Chemical formula | C20H14O4 |
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| Monoisotopic mass | 318.089209 u |
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| CAS number | 77-09-8 |
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| PubChem CID | 4764 |
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How to calculate the molar mass of phenolphthalein
20 × 12.011 + 14 × 1.008 + 4 × 15.999 = 318.328 g/mol
- Count the atoms in C20H14O4: C 20, H 14, O 4.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 318.328 g/mol.
Elemental composition of phenolphthalein
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| C Carbon | 20 | 12.011 | 240.22 | 75.463% |
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| H Hydrogen | 14 | 1.008 | 14.112 | 4.4332% |
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| O Oxygen | 4 | 15.999 | 63.996 | 20.104% |
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Grams and moles of phenolphthalein
| Amount | Equals |
|---|
| 1 g | 0.0031414 mol |
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| 10 g | 0.031414 mol |
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| 100 g | 0.31414 mol |
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| 0.1 mol | 31.833 g |
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| 1 mol | 318.33 g |
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| 1 g, in particles | 1.8918 × 10^21 |
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Calculate other compounds