Chemistry Tools
Molar Mass Calculator
Calculate the molecular weight of any chemical compound. Enter a formula and get instant results with detailed element breakdown.
Enter Chemical Formula
Use element symbols with numbers (H2O, not h2o)
How to Use:
- • Use capital letters for elements (H, C, O)
- • Add numbers after symbols (H2, C6)
- • No spaces between elements
- • Example: Water = H2O
Try Common Compounds
Enter a chemical formula to calculate
Try H2O, CO2, or C6H12O6!
🎓 Understanding Molar Mass
Definition: Molar mass is the mass of one mole of a substance, measured in grams per mole (g/mol).
Calculation: Sum the atomic masses of all atoms in the molecular formula.
Uses: Converting between grams and moles, determining empirical formulas, stoichiometry calculations.
⚡ Quick Tips
- •Always use uppercase for first letter of element symbols
- •Numbers go AFTER the element symbol (H2, not 2H)
- •For polyatomic ions, use parentheses: Ca(OH)2
- •Double-check your formula before calculating