Molar Mass of Zinc chloride
ZnCl2 — 136.280 g/mol, worked out element by element.
Molar mass of Zinc chloride, ZnCl₂
136.280 g/mol
Molecular weight 136.280 · 3 atoms per formula unit
Also known as: zncl2.
A soldering flux, because it strips oxide from metal at soldering temperature.
How 136.280 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Chlorine | 2 | 35.45 | 70.900 | 52.03% |
| Zinc | 1 | 65.38 | 65.380 | 47.97% |
| Total | 3 | 136.280 | 100% |
M = 2 × 35.450 + 1 × 65.380 = 136.280 g/mol
Grams to moles for Zinc chloride
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0073 mol | 4.419 × 10^21 |
| 10 g | 0.0734 mol | 4.419 × 10^22 |
| 25 g | 0.1834 mol | 1.105 × 10^23 |
| 50 g | 0.3669 mol | 2.209 × 10^23 |
| 100 g | 0.7338 mol | 4.419 × 10^23 |
| 250 g | 1.8345 mol | 1.105 × 10^24 |
| 136.280 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 Zinc chloride?
The molar mass of Zinc chloride (ZnCl2) is 136.280 g/mol. That is the sum of the standard atomic weights of all 3 atoms in one formula unit: 2 × 35.450 + 1 × 65.380 = 136.280.
What is the molecular weight of Zinc chloride?
136.280 — 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 136.28 and a molar mass of 136.28 g/mol are the same answer.
How many moles are in 100 g of Zinc chloride?
100 ÷ 136.280 = 0.7338 mol. To convert any mass to moles, divide by the molar mass; to go the other way, multiply.
What is the percent composition of Zinc chloride?
By mass, Zinc chloride is 52.03% chlorine, 47.97% zinc. Each element's share is its total mass in the formula divided by 136.280.
How many atoms are in one formula unit of Zinc chloride?
3: 2 chlorine, 1 zinc. One mole contains 6.02214076 × 10²³ formula units, so a mole of Zinc chloride contains 3 × 6.022 × 10²³ atoms in total.