Molar Mass of Ethylene glycol
C2H6O2 — 62.068 g/mol, worked out element by element.
Molar mass of Ethylene glycol, C₂H₆O₂
62.068 g/mol
Molecular weight 62.068 · 10 atoms per formula unit
Also known as: c2h6o2, antifreeze.
Antifreeze: two hydroxyl groups, which is what depresses the freezing point so effectively.
How 62.068 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Oxygen | 2 | 15.999 | 31.998 | 51.55% |
| Carbon | 2 | 12.011 | 24.022 | 38.70% |
| Hydrogen | 6 | 1.008 | 6.048 | 9.74% |
| Total | 10 | 62.068 | 100% |
M = 2 × 15.999 + 2 × 12.011 + 6 × 1.008 = 62.068 g/mol
Grams to moles for Ethylene glycol
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0161 mol | 9.702 × 10^21 |
| 10 g | 0.1611 mol | 9.702 × 10^22 |
| 25 g | 0.4028 mol | 2.426 × 10^23 |
| 50 g | 0.8056 mol | 4.851 × 10^23 |
| 100 g | 1.6111 mol | 9.702 × 10^23 |
| 250 g | 4.0278 mol | 2.426 × 10^24 |
| 62.068 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 Ethylene glycol?
The molar mass of Ethylene glycol (C2H6O2) is 62.068 g/mol. That is the sum of the standard atomic weights of all 10 atoms in one formula unit: 2 × 15.999 + 2 × 12.011 + 6 × 1.008 = 62.068.
What is the molecular weight of Ethylene glycol?
62.068 — 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 62.07 and a molar mass of 62.07 g/mol are the same answer.
How many moles are in 100 g of Ethylene glycol?
100 ÷ 62.068 = 1.6111 mol. To convert any mass to moles, divide by the molar mass; to go the other way, multiply.
What is the percent composition of Ethylene glycol?
By mass, Ethylene glycol is 51.55% oxygen, 38.70% carbon, 9.74% hydrogen. Each element's share is its total mass in the formula divided by 62.068.
How many atoms are in one formula unit of Ethylene glycol?
10: 2 oxygen, 2 carbon, 6 hydrogen. One mole contains 6.02214076 × 10²³ formula units, so a mole of Ethylene glycol contains 10 × 6.022 × 10²³ atoms in total.