Molar Mass Calculator
Calculate the molecular weight of any chemical compound by entering its formula
🧪 Chemical Formula Input
📚 Formula Notation Guide
Element Count Notation
Use numbers to indicate atom counts
Supported Formats:
- • Simple formulas: H2O, CO2, NaCl
- • Complex formulas: C6H12O6, Al2(SO4)3
- • Parentheses: Mg(OH)2, (NH4)2SO4
- • No subscripts needed: Use regular numbers
📊 Molar Mass Results
Molar Mass
18.02 g/mol
Formula
H2O
Total Atoms
3
Elements
2
Elemental Composition
| Element | Count | Atomic Mass | Contribution | Percentage |
|---|
🔍 Formula Analysis
Formula Type
Molecular
Charge
Neutral
Mass Precision
±0.01 g/mol
Validation
Valid
⚖️ What is Molar Mass?
Molar mass is the mass of one mole of a substance, measured in grams per mole (g/mol). It’s calculated by summing the atomic masses of all atoms in a chemical formula.
M = Σ(n × atomic mass)
Sum of (atom count × atomic mass) for all elements
Example: H2O = (2×1.008) + (1×16.00) = 18.02 g/mol
Water molar mass calculation
🧪 Applications
Molar mass calculations are essential for:
- ✓ Stoichiometric calculations
- ✓ Solution preparation
- ✓ Chemical reaction balancing
- ✓ Analytical chemistry
- ✓ Pharmaceutical dosing
- ✓ Material science
n = m / M
Moles = Mass ÷ Molar Mass
🔬 Common Formulas
Important chemical compounds and their molar masses:
- • Water: H2O = 18.02 g/mol
- • Table Salt: NaCl = 58.44 g/mol
- • Glucose: C6H12O6 = 180.16 g/mol
- • Carbon Dioxide: CO2 = 44.01 g/mol
- • Sulfuric Acid: H2SO4 = 98.08 g/mol
- • Ammonia: NH3 = 17.03 g/mol