Molar Mass of Sodium chloride
NaCl — 58.440 g/mol, worked out element by element.
Molar mass of Sodium chloride, NaCl
58.440 g/mol
Molecular weight 58.440 · 2 atoms per formula unit
Also known as: nacl, table salt, halite, common salt.
The reference ionic compound: one formula unit, no molecules, and the mass every molar-mass example starts from.
How 58.440 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Chlorine | 1 | 35.45 | 35.450 | 60.66% |
| Sodium | 1 | 22.99 | 22.990 | 39.34% |
| Total | 2 | 58.440 | 100% |
M = 1 × 35.450 + 1 × 22.990 = 58.440 g/mol
Grams to moles for Sodium chloride
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0171 mol | 1.030 × 10^22 |
| 10 g | 0.1711 mol | 1.030 × 10^23 |
| 25 g | 0.4278 mol | 2.576 × 10^23 |
| 50 g | 0.8556 mol | 5.152 × 10^23 |
| 100 g | 1.7112 mol | 1.030 × 10^24 |
| 250 g | 4.2779 mol | 2.576 × 10^24 |
| 58.440 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 Sodium chloride?
The molar mass of Sodium chloride (NaCl) is 58.440 g/mol. That is the sum of the standard atomic weights of all 2 atoms in one formula unit: 1 × 35.450 + 1 × 22.990 = 58.440.
What is the molecular weight of Sodium chloride?
58.440 — 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 58.44 and a molar mass of 58.44 g/mol are the same answer.
How many moles are in 100 g of Sodium chloride?
100 ÷ 58.440 = 1.7112 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 chloride?
By mass, Sodium chloride is 60.66% chlorine, 39.34% sodium. Each element's share is its total mass in the formula divided by 58.440.
How many atoms are in one formula unit of Sodium chloride?
2: 1 chlorine, 1 sodium. One mole contains 6.02214076 × 10²³ formula units, so a mole of Sodium chloride contains 2 × 6.022 × 10²³ atoms in total.