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Molar massAmmonium sulfate
Molar mass of (NH4)2SO4 (Ammonium sulfate)
The molar mass of (NH4)2SO4 is 132.14 g/mol.
A common nitrogen fertiliser.
Step-by-step calculation
Add up the atomic masses of every atom in the formula:
2 × 14.007 + 8 × 1.008 + 1 × 32.065 + 4 × 15.999 = 132.14 g/mol
| Element | Atoms | Atomic mass (u) | Subtotal (g/mol) | % by mass |
|---|---|---|---|---|
| Nitrogen (N) | 2 | 14.007 | 28.014 | 21.20% |
| Hydrogen (H) | 8 | 1.008 | 8.064 | 6.10% |
| Sulfur (S) | 1 | 32.065 | 32.065 | 24.27% |
| Oxygen (O) | 4 | 15.999 | 63.996 | 48.43% |
| Molar mass of (NH4)2SO4 | 132.14 g/mol | |||
Moles to grams for (NH4)2SO4
Multiply the number of moles by 132.14 g/mol to get the mass, and divide a mass by 132.14 g/mol to get the moles.
| Amount (mol) | Mass (g) | Mass (g) | Amount (mol) |
|---|---|---|---|
| 0.1 mol | 13.21 g | 1 g | 0.0076 mol |
| 0.25 mol | 33.03 g | 5 g | 0.0378 mol |
| 0.5 mol | 66.07 g | 10 g | 0.0757 mol |
| 1 mol | 132.14 g | 50 g | 0.3784 mol |
| 2 mol | 264.28 g | 100 g | 0.7568 mol |
| 5 mol | 660.70 g | 500 g | 3.7839 mol |
Frequently asked questions
What is the molar mass of (NH4)2SO4?
The molar mass of (NH₄)₂SO₄ (ammonium sulfate) is 132.14 g/mol, so one mole of ammonium sulfate weighs 132.14 grams.
How do you calculate the molar mass of (NH4)2SO4?
Multiply each element’s atomic mass by the number of atoms in the formula and add the results: 2 × 14.007 + 8 × 1.008 + 1 × 32.065 + 4 × 15.999 = 132.14 g/mol.
What percentage of (NH4)2SO4 is oxygen?
Oxygen makes up 48.43% of the mass of (NH₄)₂SO₄.
How many grams are in one mole of (NH4)2SO4?
One mole of (NH₄)₂SO₄ has a mass of 132.14 grams, and contains 6.022 × 10²³ formula units.