Molar Mass of Ammonium sulfate
(NH4)2SO4 — 132.134 g/mol, worked out element by element.
Molar mass of Ammonium sulfate, (NH₄)₂SO₄
132.134 g/mol
Molecular weight 132.134 · 15 atoms per formula unit
Also known as: (nh4)2so4.
A fertiliser, and the salt used to precipitate proteins out of solution.
How 132.134 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Oxygen | 4 | 15.999 | 63.996 | 48.43% |
| Sulfur | 1 | 32.06 | 32.060 | 24.26% |
| Nitrogen | 2 | 14.007 | 28.014 | 21.20% |
| Hydrogen | 8 | 1.008 | 8.064 | 6.10% |
| Total | 15 | 132.134 | 100% |
M = 4 × 15.999 + 1 × 32.060 + 2 × 14.007 + 8 × 1.008 = 132.134 g/mol
Grams to moles for Ammonium sulfate
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0076 mol | 4.558 × 10^21 |
| 10 g | 0.0757 mol | 4.558 × 10^22 |
| 25 g | 0.1892 mol | 1.139 × 10^23 |
| 50 g | 0.3784 mol | 2.279 × 10^23 |
| 100 g | 0.7568 mol | 4.558 × 10^23 |
| 250 g | 1.8920 mol | 1.139 × 10^24 |
| 132.134 g | 1 mol | 6.022 × 10^23 |
For any other amount, use the molar mass calculator, or the molarity calculator to make up a solution of a given concentration.
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Frequently Asked Questions
What is the molar mass of Ammonium sulfate?
The molar mass of Ammonium sulfate ((NH4)2SO4) is 132.134 g/mol. That is the sum of the standard atomic weights of all 15 atoms in one formula unit: 4 × 15.999 + 1 × 32.060 + 2 × 14.007 + 8 × 1.008 = 132.134.
What is the molecular weight of Ammonium sulfate?
132.134 — the same number as the molar mass, but as a dimensionless ratio rather than in g/mol. The two terms describe the same arithmetic, so a molecular weight of 132.13 and a molar mass of 132.13 g/mol are the same answer.
How many moles are in 100 g of Ammonium sulfate?
100 ÷ 132.134 = 0.7568 mol. To convert any mass to moles, divide by the molar mass; to go the other way, multiply.
What is the percent composition of Ammonium sulfate?
By mass, Ammonium sulfate is 48.43% oxygen, 24.26% sulfur, 21.20% nitrogen, 6.10% hydrogen. Each element's share is its total mass in the formula divided by 132.134.
How many atoms are in one formula unit of Ammonium sulfate?
15: 4 oxygen, 1 sulfur, 2 nitrogen, 8 hydrogen. One mole contains 6.02214076 × 10²³ formula units, so a mole of Ammonium sulfate contains 15 × 6.022 × 10²³ atoms in total.