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Molar massPropane
Molar mass of C3H8 (Propane)
The molar mass of C3H8 is 44.10 g/mol.
A fuel gas sold in cylinders for camping stoves and barbecues.
Step-by-step calculation
Add up the atomic masses of every atom in the formula:
3 × 12.011 + 8 × 1.008 = 44.10 g/mol
| Element | Atoms | Atomic mass (u) | Subtotal (g/mol) | % by mass |
|---|---|---|---|---|
| Carbon (C) | 3 | 12.011 | 36.033 | 81.71% |
| Hydrogen (H) | 8 | 1.008 | 8.064 | 18.29% |
| Molar mass of C3H8 | 44.10 g/mol | |||
Moles to grams for C3H8
Multiply the number of moles by 44.10 g/mol to get the mass, and divide a mass by 44.10 g/mol to get the moles.
| Amount (mol) | Mass (g) | Mass (g) | Amount (mol) |
|---|---|---|---|
| 0.1 mol | 4.41 g | 1 g | 0.0227 mol |
| 0.25 mol | 11.02 g | 5 g | 0.1134 mol |
| 0.5 mol | 22.05 g | 10 g | 0.2268 mol |
| 1 mol | 44.10 g | 50 g | 1.1339 mol |
| 2 mol | 88.19 g | 100 g | 2.2677 mol |
| 5 mol | 220.49 g | 500 g | 11.3386 mol |
Frequently asked questions
What is the molar mass of C3H8?
The molar mass of C₃H₈ (propane) is 44.10 g/mol, so one mole of propane weighs 44.10 grams.
How do you calculate the molar mass of C3H8?
Multiply each element’s atomic mass by the number of atoms in the formula and add the results: 3 × 12.011 + 8 × 1.008 = 44.10 g/mol.
What percentage of C3H8 is carbon?
Carbon makes up 81.71% of the mass of C₃H₈.
How many grams are in one mole of C3H8?
One mole of C₃H₈ has a mass of 44.10 grams, and contains 6.022 × 10²³ formula units.