Calculate missing energy, mass, or specific energy from g/mol and kJ/mol, or convert kJ/mol to kcal/mol, eV, cm⁻1, K, and J/mol units.
g/mol To kJ/mol Formula
The following formula is used to calculate the energy, mass, or specific energy when the other two variables are known.
Variables:
- E is the molar energy in kJ/mol
- m is the molar mass in g/mol
- SE is the specific energy in kJ/g
To calculate molar energy, multiply molar mass by specific energy. To find molar mass, divide molar energy by nonzero specific energy. To determine specific energy, divide molar energy by positive molar mass. Molar mass alone cannot determine energy; the specific energy must describe the same material and process.
| kJ/mol | J/mol | kcal/mol | cal/mol |
|---|---|---|---|
| 0.5 | 500 | 0.120 | 119.503 |
| 1 | 1000 | 0.239 | 239.006 |
| 2 | 2000 | 0.478 | 478.011 |
| 5 | 5000 | 1.195 | 1195.029 |
| 10 | 10000 | 2.390 | 2390.057 |
| 15 | 15000 | 3.585 | 3585.086 |
| 20 | 20000 | 4.780 | 4780.115 |
| 25 | 25000 | 5.975 | 5975.143 |
| 30 | 30000 | 7.170 | 7170.172 |
| 40 | 40000 | 9.560 | 9560.229 |
| 50 | 50000 | 11.950 | 11950.287 |
| 60 | 60000 | 14.340 | 14340.344 |
| 75 | 75000 | 17.925 | 17925.430 |
| 100 | 100000 | 23.901 | 23900.574 |
| 150 | 150000 | 35.851 | 35850.860 |
| 200 | 200000 | 47.801 | 47801.147 |
| 250 | 250000 | 59.751 | 59751.433 |
| 300 | 300000 | 71.702 | 71701.719 |
| 400 | 400000 | 95.602 | 95602.294 |
| 500 | 500000 | 119.503 | 119502.868 |
| *Unit relations: 1 kJ = 1000 J; 1 cal = 4.184 J; 1 kcal = 1000 cal. Values rounded to 3 decimals where shown. | |||
What is g/mol To kJ/mol?
g/mol to kJ/mol conversion involves calculating the energy per mole of a substance given its molar mass and specific energy. This conversion is essential in fields like chemistry and physics where understanding the energy content of substances is crucial. The energy in kJ/mol represents the amount of energy per mole of the substance, which can be derived from the molar mass (in grams per mole) and the specific energy (in kJ per gram).
How to Calculate g/mol To kJ/mol?
The following steps outline how to calculate the energy, mass, or specific energy.
- First, determine the molar mass (m) in g/mol.
- Next, determine the specific energy (SE) in kJ/g.
- Calculate the energy (E) using the formula E = m * SE.
- If you need to find the mass, use the formula m = E / SE.
- If you need to find the specific energy, use the formula SE = E / m.
- After inserting the values 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 (E) = 50 kJ/mol
Molar Mass (m) = 10 g/mol
Specific Energy (SE) = 5 kJ/g
