Convert kJ/g to kJ/mol or kJ/mol to kJ/g using molar mass, with options for J, cal, and kcal per gram or mole for common substances like water and glucose.
kJ/g to kJ/mol Conversion Formula
The following formula is used to convert the energy content from kJ/g to kJ/mol.
Eₘₒₗ = Eg × M
Variables:
- E_{mol} is the energy per mole (kJ/mol)
- E_{g} is the energy per gram (kJ/g)
- M is the molar mass of the substance (g/mol)
To convert the energy content from kJ/g to kJ/mol, multiply the energy per gram by the molar mass of the substance.
| Energy (kJ/g) | Energy (kJ/mol) |
|---|---|
| 0.1 | 1.802 |
| 0.5 | 9.008 |
| 1 | 18.015 |
| 2 | 36.031 |
| 5 | 90.076 |
| 10 | 180.153 |
| 15 | 270.229 |
| 17 | 306.260 |
| 20 | 360.306 |
| 25 | 450.382 |
| 30 | 540.458 |
| 35 | 630.535 |
| 37 | 666.565 |
| 40 | 720.611 |
| 45 | 810.688 |
| 46 | 828.703 |
| 50 | 900.764 |
| 60 | 1080.917 |
| 75 | 1351.146 |
| 100 | 1801.528 |
| *Assumes molar mass M = 18.01528 g/mol (water). Relation: kJ/mol = (kJ/g) × M (g/mol). | |
How to Use the kJ/g to kJ/mol Calculator?
The following steps outline how to use the kJ/g to kJ/mol Calculator.
- First, select Energy per mole and enter the energy per gram with its unit; select Energy per gram for the reverse conversion.
- Next, enter the molar mass (M) of the same substance in g/mol, or choose and verify an approximate preset.
- Use the formula E_{mol} = E_{g} times M to calculate the energy per mole.
- Finally, select the result unit and Calculate. The forward relation multiplies by M; the reverse relation divides by M. cal and kcal mean thermochemical calories.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Energy per gram (E_{g}) = 25 kJ/g
Molar mass (M) = 58.44 g/mol
