What elements are supported?
This basic calculator supports common elements like H, C, N, O, Na, Cl, etc. For complex organic molecules, ensure correct capitalization.
Calculator
Enter your values
Case sensitive (e.g., NaCl, not nacl)
Results
Molar Mass
18.015 g/mol
Breakdown
- H: 1.008 x 2 = 2.016
- O: 15.999 x 1 = 15.999
Composition Analysis
Breakdown of the molecule's mass
Mass Contribution
H (11.2%)2.016 g/mol
O (88.8%)15.999 g/mol
Stoichiometric Utility
Molar mass is the bridge between the microscopic world (atoms/molecules) and the macroscopic world (grams).18.015 grams of this substance contains exactly 1 mole (6.022 x 10^23) of molecules.
Physical Properties
Heavier molecules generally have higher boiling points due to stronger London dispersion forces, though polarity and hydrogen bonding (like in H2O) often play a larger role.
How to Use
Step-by-step instructions
- 1Enter the chemical formula (e.g., H2O, CO2, NaCl).
- 2Case matters! (Co is Cobalt, CO is Carbon Monoxide).
- 3The calculator will compute the total molar mass.
Molar Mass
The molar mass is the sum of the atomic masses of all atoms in the molecule.
Sum(Atomic Mass x Count)Variables:
g/molGrams per moleExample
Water (H2O)
Inputs:
Formula:H2O
Steps:
- 1.H: 1.008 x 2 = 2.016
- 2.O: 15.999 x 1 = 15.999
- 3.Total: 18.015 g/mol
Result:
18.015 g/mol