Molar Mass Calculator
Calculate the molar mass of any chemical compound by entering its formula.
How to Use the Molar Mass Calculator
- Type the chemical formula into the input field (e.g., H2O, NaCl, C6H12O6).
- Use standard element symbols with capital first letters and numeric subscripts.
- Click Calculate — the calculator parses the formula and lists each element with its atom count and atomic weight.
- Read the total molar mass in g/mol shown at the bottom of the element table.
Schnellreferenz
| Von | Nach |
|---|---|
| H2O | 18.015 g/mol |
| NaCl | 58.443 g/mol |
| CO2 | 44.010 g/mol |
| C6H12O6 | 180.156 g/mol |
| CaCO3 | 100.087 g/mol |
| H2SO4 | 98.079 g/mol |
Anwendungsfälle
- •Converting between grams and moles in chemistry lab calculations.
- •Preparing solutions of known molarity for titrations and experiments.
- •Studying stoichiometry and verifying balanced chemical equations.
- •Cross-checking molecular weights for pharmaceutical or materials-science applications.
Formel
Molar mass is the mass of one mole of a substance, expressed in grams per mole (g/mol). It is calculated by summing the atomic weights of all atoms in the chemical formula: M = Σ (atomic weight × atom count). Atomic weights are taken from the IUPAC standard atomic weights table.
Häufig gestellte Fragen
What is molar mass?
Molar mass is the mass of exactly one mole (6.022 × 10²³ particles) of a substance. It is numerically equal to the average atomic or molecular mass of the substance expressed in atomic mass units (u), and has units of grams per mole (g/mol).
How do I write a chemical formula for this calculator?
Use standard chemical notation: element symbols with a capital first letter (e.g., H, He, Na), followed by a subscript number for the atom count. Group atoms in parentheses when needed: Ca(OH)2, Al2(SO4)3. The calculator parses nested parentheses and polyatomic groups automatically.
What units does molar mass use?
Molar mass is expressed in grams per mole (g/mol). This unit is equivalent to atomic mass units (u or Da) per atom/molecule. For example, water (H2O) has a molar mass of 18.015 g/mol, meaning one mole of water weighs 18.015 grams.