Presets:

Chemical Equation (Reactants → Products)

Balanced Chemical Equation

✓ Mass Conservation Verified (Stoichiometric balance = 0)

🧪 Atom Conservation Check

Element	Reactants (Left)	Products (Right)	Status

⚖️ Molar Mass of Species

Compound	Molar Mass	Molar Ratio

🛡️ 100% Client-Side • Instant & Auto-Saved Locally

Chemical Equation Balancer & Molar Mass

🎓 Student

Balance complex chemical reactions and calculate stoichiometry molar masses instantly with step-by-step atom checks.

⭐ 4.9/5 (141 votes)

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Frequently Asked Questions

Quick answers about controls, features, accuracy, and local browser saving.

How does the chemical equation balancer find the coefficients?

The balancer parses reactants and products into atomic vectors and solves a system of linear homogeneous equations using Gaussian elimination over the integers to satisfy the Law of Conservation of Mass (atoms in = atoms out).

How do I enter chemical formulas?

Use standard case-sensitive element symbols: capitalized first letter followed by lowercase (e.g. Fe, Cl, Na). You can use parentheses for polyatomic ions (e.g. Ca(OH)2, Al2(SO4)3) and use + to separate compounds, and ->, =, or → for the yield arrow.

How is the molar mass calculated?

The molar mass is computed by summing the standard IUPAC atomic weights (in g/mol) of each constituent atom in the chemical formula.

Are reactions processed privately?

Yes! The entire equation parsing, stoichiometry matrix balancing, and molar mass calculation runs 100% locally in your web browser with zero server requests.

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