Potassium Dichromate at a glance
| Property | Value |
|---|
| Molar mass | 294.181 g/mol |
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| Molecular weight | 294.181 u |
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| Chemical formula | K2Cr2O7 |
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| CAS number | 7778-50-9 |
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| PubChem CID | 24502 |
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How to calculate the molar mass of potassium dichromate
2 × 39.098 + 2 × 51.996 + 7 × 15.999 = 294.181 g/mol
- Count the atoms in K2Cr2O7: K 2, Cr 2, O 7.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 294.181 g/mol.
Elemental composition of potassium dichromate
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| K Potassium | 2 | 39.098 | 78.196 | 26.581% |
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| Cr Chromium | 2 | 51.996 | 103.992 | 35.35% |
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| O Oxygen | 7 | 15.999 | 111.993 | 38.069% |
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Grams and moles of potassium dichromate
| Amount | Equals |
|---|
| 1 g | 0.0033993 mol |
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| 10 g | 0.033993 mol |
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| 100 g | 0.33993 mol |
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| 0.1 mol | 29.418 g |
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| 1 mol | 294.18 g |
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| 1 g, in particles | 2.0471 × 10^21 |
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Calculate other compounds