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Molar massSulfuric acid
Molar mass of H2SO4 (Sulfuric acid)
The molar mass of H2SO4 is 98.08 g/mol.
A strong diprotic acid and the most produced industrial chemical in the world.
Step-by-step calculation
Add up the atomic masses of every atom in the formula:
2 × 1.008 + 1 × 32.065 + 4 × 15.999 = 98.08 g/mol
| Element | Atoms | Atomic mass (u) | Subtotal (g/mol) | % by mass |
|---|---|---|---|---|
| Hydrogen (H) | 2 | 1.008 | 2.016 | 2.06% |
| Sulfur (S) | 1 | 32.065 | 32.065 | 32.69% |
| Oxygen (O) | 4 | 15.999 | 63.996 | 65.25% |
| Molar mass of H2SO4 | 98.08 g/mol | |||
Moles to grams for H2SO4
Multiply the number of moles by 98.08 g/mol to get the mass, and divide a mass by 98.08 g/mol to get the moles.
| Amount (mol) | Mass (g) | Mass (g) | Amount (mol) |
|---|---|---|---|
| 0.1 mol | 9.81 g | 1 g | 0.0102 mol |
| 0.25 mol | 24.52 g | 5 g | 0.0510 mol |
| 0.5 mol | 49.04 g | 10 g | 0.1020 mol |
| 1 mol | 98.08 g | 50 g | 0.5098 mol |
| 2 mol | 196.15 g | 100 g | 1.0196 mol |
| 5 mol | 490.38 g | 500 g | 5.0980 mol |
Experiments that use sulfuric acid
⚖️ Calculate any other formulaFrequently asked questions
What is the molar mass of H2SO4?
The molar mass of H₂SO₄ (sulfuric acid) is 98.08 g/mol, so one mole of sulfuric acid weighs 98.08 grams.
How do you calculate the molar mass of H2SO4?
Multiply each element’s atomic mass by the number of atoms in the formula and add the results: 2 × 1.008 + 1 × 32.065 + 4 × 15.999 = 98.08 g/mol.
What percentage of H2SO4 is oxygen?
Oxygen makes up 65.25% of the mass of H₂SO₄.
How many grams are in one mole of H2SO4?
One mole of H₂SO₄ has a mass of 98.08 grams, and contains 6.022 × 10²³ formula units.