Enter the number of moles, the density (kg/m^3), and the volume (m^3) into the Molar Mass From Density Calculator. The calculator will evaluate and display the Molar Mass From Density.
- All Chemistry Calculators
- Materials Properties Unit Converters
- All Mass Calculators
- Particles to Mass Calculator
Molar Mass From Density Formula
The following formula is used to calculate the Molar Mass From Density.
MM = (D*V * 1000) / n
- Where MM is the Molar Mass From Density (g/mol)
- n is the number of moles
- D is the density (kg/m^3)
- V is the volume (m^3)
To calculate the molar mass from density, multiply the density by the volume, then multiply by 1000 and divide by the number of moles.
| kg/m³ | g/cm³ | lb/ft³ |
|---|---|---|
| 500 | 0.500 | 31.214 |
| 700 | 0.700 | 43.699 |
| 740 | 0.740 | 46.200 |
| 789 | 0.789 | 49.256 |
| 800 | 0.800 | 49.940 |
| 850 | 0.850 | 53.062 |
| 900 | 0.900 | 56.185 |
| 917 | 0.917 | 57.246 |
| 950 | 0.950 | 59.306 |
| 1000 | 1.000 | 62.428 |
| 1025 | 1.025 | 63.988 |
| 1100 | 1.100 | 68.670 |
| 1200 | 1.200 | 74.913 |
| 1500 | 1.500 | 93.641 |
| 2000 | 2.000 | 124.855 |
| 2400 | 2.400 | 149.826 |
| 2700 | 2.700 | 168.554 |
| 7850 | 7.850 | 490.058 |
| 8960 | 8.960 | 559.353 |
| 11340 | 11.340 | 707.932 |
| Conversion factors used: 1 g/cm³ = 1000 kg/m³; 1 lb/ft³ = 16.0185 kg/m³. | ||
How to Calculate Molar Mass From Density?
The following example problems outline how to calculate Molar Mass From Density.
Example Problem #1
- First, determine the number of moles.
- The number of moles is calculated to be : 4.5.
- Next, determine the density (kg/m^3).
- The density (kg/m^3) is measured to be: 30.
- Next, determine the volume (m^3).
- The volume (m^3) is found to be: 300.
- Finally, calculate the Molar Mass From Density using the formula above:
MM = (D*V * 1000) / n
The values given above are inserted into the equation below and the solution is calculated:
MM = (30*300 * 1000) / 4.5 = 2,000,000 (g/mol)
Example Problem #2
The variables needed for this problem are provided below:
number of moles = 6
density (kg/m^3) = 7
volume (m^3) = 4
This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer.
MM = (D*V * 1000) / n = (g/mol)
