🧪 Stoichiometry & Chemical Formula Parser
Molar Mass & Molecular Weight Calculator
Enter any chemical formula (including parentheses, hydrates, and polyatomic groups) to calculate exact molar mass in g/mol and elemental mass percentage breakdown.
💧 Water (H₂O)
🍬 Glucose (C₆H₁₂O₆)
🧂 Table Salt (NaCl)
⚗️ Sulfuric Acid (H₂SO₄)
☕ Caffeine (C₈H₁₀N₄O₂)
🧱 Calcium Hydroxide (Ca(OH)₂)
🔷 Copper Sulfate Hydrate
Chemical Formula
Capitalize element symbols properly (e.g.
Co for Cobalt, CO for Carbon Monoxide).
g
Molar Mass (Molecular Weight)
180.156 g/mol
| Element | Symbol | Atomic Weight | Atoms | Mass (g/mol) | Mass % |
|---|
💡 Stoichiometry Identity:
1 mole of Glucose (C₆H₁₂O₆) contains 6.022 × 10²³ molecules and weighs exactly 180.156 grams.
How Molar Mass is Calculated
The molar mass ($M$) of a compound is the sum of the standard atomic weights ($A_r$) of each element multiplied by its subscript:
$$M = \sum_{i} n_i \times A_{r,i}$$
- Avogadro's Constant ($N_A$): $6.02214076 \times 10^{23}\text{ particles/mol}$.
- Mass Percent: $$\% \text{ Element} = \left(\frac{n \times A_r}{M_{\text{total}}}\right) \times 100\%$$