Molar Mass of Ammonium phosphate
(NH4)3PO4 — 149.087 g/mol, worked out element by element.
Molar mass of Ammonium phosphate, (NH₄)₃PO₄
149.087 g/mol
Molecular weight 149.087 · 20 atoms per formula unit
Also known as: (nh4)3po4.
Supplies both nitrogen and phosphorus, the two nutrients fertiliser grades lead with.
How 149.087 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Oxygen | 4 | 15.999 | 63.996 | 42.93% |
| Nitrogen | 3 | 14.007 | 42.021 | 28.19% |
| Phosphorus | 1 | 30.974 | 30.974 | 20.78% |
| Hydrogen | 12 | 1.008 | 12.096 | 8.11% |
| Total | 20 | 149.087 | 100% |
M = 4 × 15.999 + 3 × 14.007 + 1 × 30.974 + 12 × 1.008 = 149.087 g/mol
Grams to moles for Ammonium phosphate
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0067 mol | 4.039 × 10^21 |
| 10 g | 0.0671 mol | 4.039 × 10^22 |
| 25 g | 0.1677 mol | 1.010 × 10^23 |
| 50 g | 0.3354 mol | 2.020 × 10^23 |
| 100 g | 0.6707 mol | 4.039 × 10^23 |
| 250 g | 1.6769 mol | 1.010 × 10^24 |
| 149.087 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 phosphate?
The molar mass of Ammonium phosphate ((NH4)3PO4) is 149.087 g/mol. That is the sum of the standard atomic weights of all 20 atoms in one formula unit: 4 × 15.999 + 3 × 14.007 + 1 × 30.974 + 12 × 1.008 = 149.087.
What is the molecular weight of Ammonium phosphate?
149.087 — 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 149.09 and a molar mass of 149.09 g/mol are the same answer.
How many moles are in 100 g of Ammonium phosphate?
100 ÷ 149.087 = 0.6707 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 phosphate?
By mass, Ammonium phosphate is 42.93% oxygen, 28.19% nitrogen, 20.78% phosphorus, 8.11% hydrogen. Each element's share is its total mass in the formula divided by 149.087.
How many atoms are in one formula unit of Ammonium phosphate?
20: 4 oxygen, 3 nitrogen, 1 phosphorus, 12 hydrogen. One mole contains 6.02214076 × 10²³ formula units, so a mole of Ammonium phosphate contains 20 × 6.022 × 10²³ atoms in total.