Molar Mass of Sodium phosphate
Na3PO4 — 163.940 g/mol, worked out element by element.
Molar mass of Sodium phosphate, Na₃PO₄
163.940 g/mol
Molecular weight 163.940 · 8 atoms per formula unit
Also known as: na3po4, trisodium phosphate, tsp.
A strongly alkaline cleaning agent; the tribasic member of the sodium phosphate family.
How 163.940 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Sodium | 3 | 22.99 | 68.970 | 42.07% |
| Oxygen | 4 | 15.999 | 63.996 | 39.04% |
| Phosphorus | 1 | 30.974 | 30.974 | 18.89% |
| Total | 8 | 163.940 | 100% |
M = 3 × 22.990 + 4 × 15.999 + 1 × 30.974 = 163.940 g/mol
Grams to moles for Sodium phosphate
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0061 mol | 3.673 × 10^21 |
| 10 g | 0.0610 mol | 3.673 × 10^22 |
| 25 g | 0.1525 mol | 9.183 × 10^22 |
| 50 g | 0.3050 mol | 1.837 × 10^23 |
| 100 g | 0.6100 mol | 3.673 × 10^23 |
| 250 g | 1.5249 mol | 9.183 × 10^23 |
| 163.940 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.
Related compounds
Can't find the exact calculator you need?
Describe it in one sentence — get a working, math-verified calculator in seconds. Free, no signup.
Build your own calculatorRelated Calculators
Frequently Asked Questions
What is the molar mass of Sodium phosphate?
The molar mass of Sodium phosphate (Na3PO4) is 163.940 g/mol. That is the sum of the standard atomic weights of all 8 atoms in one formula unit: 3 × 22.990 + 4 × 15.999 + 1 × 30.974 = 163.940.
What is the molecular weight of Sodium phosphate?
163.940 — 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 163.94 and a molar mass of 163.94 g/mol are the same answer.
How many moles are in 100 g of Sodium phosphate?
100 ÷ 163.940 = 0.6100 mol. To convert any mass to moles, divide by the molar mass; to go the other way, multiply.
What is the percent composition of Sodium phosphate?
By mass, Sodium phosphate is 42.07% sodium, 39.04% oxygen, 18.89% phosphorus. Each element's share is its total mass in the formula divided by 163.940.
How many atoms are in one formula unit of Sodium phosphate?
8: 3 sodium, 4 oxygen, 1 phosphorus. One mole contains 6.02214076 × 10²³ formula units, so a mole of Sodium phosphate contains 8 × 6.022 × 10²³ atoms in total.