Limiting reagent, theoretical yield, percent yield & purity (with steps)
Auto-balance reactions, convert inputs with purity adjustments, and walk through every stoichiometric step—from ξ and leftovers to percent yield and purity inversion—for transparent labs and classrooms.
| Species | Side | Coeff | Molar mass (g/mol) | Amount | Type | Purity (%) |
|---|
Assumes the chosen reactant is limiting and that all other reactants are present in excess.
Frequently asked questions
How does this calculator determine the limiting reagent?
Each reactant input is converted to effective moles based on unit and purity, ratios n0/ν are compared, and the smallest ratio marks the limiting reagent. The How it's calculated log captures conversions, ratios, and the ξ extent value.
Can it estimate percent purity from a measured product mass?
Yes. Provide the suspect reactant mass, choose the target product, and enter the measured product mass. The tool back-solves n(product), scales by stoichiometric coefficients, and reports percent purity with detailed steps.
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How it's calculated
- From balanced equation and masses → moles; smallest moles limits the reaction.
- Computes theoretical yield for selected product.
- Share URL preserves inputs and coefficients.