Molar Mass of Cholesterol
C27H46O — 386.664 g/mol, worked out element by element.
Molar mass of Cholesterol, C₂₇H₄₆O
386.664 g/mol
Molecular weight 386.664 · 74 atoms per formula unit
Also known as: c27h46o.
A steroid built into every animal cell membrane; the molar mass is what converts mg/dL to mmol/L.
How 386.664 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Carbon | 27 | 12.011 | 324.297 | 83.87% |
| Hydrogen | 46 | 1.008 | 46.368 | 11.99% |
| Oxygen | 1 | 15.999 | 15.999 | 4.14% |
| Total | 74 | 386.664 | 100% |
M = 27 × 12.011 + 46 × 1.008 + 1 × 15.999 = 386.664 g/mol
Grams to moles for Cholesterol
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0026 mol | 1.557 × 10^21 |
| 10 g | 0.0259 mol | 1.557 × 10^22 |
| 25 g | 0.0647 mol | 3.894 × 10^22 |
| 50 g | 0.1293 mol | 7.787 × 10^22 |
| 100 g | 0.2586 mol | 1.557 × 10^23 |
| 250 g | 0.6466 mol | 3.894 × 10^23 |
| 386.664 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 Cholesterol?
The molar mass of Cholesterol (C27H46O) is 386.664 g/mol. That is the sum of the standard atomic weights of all 74 atoms in one formula unit: 27 × 12.011 + 46 × 1.008 + 1 × 15.999 = 386.664.
What is the molecular weight of Cholesterol?
386.664 — 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 386.66 and a molar mass of 386.66 g/mol are the same answer.
How many moles are in 100 g of Cholesterol?
100 ÷ 386.664 = 0.2586 mol. To convert any mass to moles, divide by the molar mass; to go the other way, multiply.
What is the percent composition of Cholesterol?
By mass, Cholesterol is 83.87% carbon, 11.99% hydrogen, 4.14% oxygen. Each element's share is its total mass in the formula divided by 386.664.
How many atoms are in one formula unit of Cholesterol?
74: 27 carbon, 46 hydrogen, 1 oxygen. One mole contains 6.02214076 × 10²³ formula units, so a mole of Cholesterol contains 74 × 6.022 × 10²³ atoms in total.