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Molar massSulfur dioxide
Molar mass of SO2 (Sulfur dioxide)
The molar mass of SO2 is 64.06 g/mol.
A choking gas made when sulfur burns; a cause of acid rain.
Step-by-step calculation
Add up the atomic masses of every atom in the formula:
1 × 32.065 + 2 × 15.999 = 64.06 g/mol
| Element | Atoms | Atomic mass (u) | Subtotal (g/mol) | % by mass |
|---|---|---|---|---|
| Sulfur (S) | 1 | 32.065 | 32.065 | 50.05% |
| Oxygen (O) | 2 | 15.999 | 31.998 | 49.95% |
| Molar mass of SO2 | 64.06 g/mol | |||
Moles to grams for SO2
Multiply the number of moles by 64.06 g/mol to get the mass, and divide a mass by 64.06 g/mol to get the moles.
| Amount (mol) | Mass (g) | Mass (g) | Amount (mol) |
|---|---|---|---|
| 0.1 mol | 6.41 g | 1 g | 0.0156 mol |
| 0.25 mol | 16.02 g | 5 g | 0.0780 mol |
| 0.5 mol | 32.03 g | 10 g | 0.1561 mol |
| 1 mol | 64.06 g | 50 g | 0.7805 mol |
| 2 mol | 128.13 g | 100 g | 1.5610 mol |
| 5 mol | 320.31 g | 500 g | 7.8048 mol |
Experiments that use sulfur dioxide
⚖️ Calculate any other formulaFrequently asked questions
What is the molar mass of SO2?
The molar mass of SO₂ (sulfur dioxide) is 64.06 g/mol, so one mole of sulfur dioxide weighs 64.06 grams.
How do you calculate the molar mass of SO2?
Multiply each element’s atomic mass by the number of atoms in the formula and add the results: 1 × 32.065 + 2 × 15.999 = 64.06 g/mol.
What percentage of SO2 is sulfur?
Sulfur makes up 50.05% of the mass of SO₂.
How many grams are in one mole of SO2?
One mole of SO₂ has a mass of 64.06 grams, and contains 6.022 × 10²³ formula units.