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ChemEq Stoichiometry Calculator
x402
ChemEq Stoichiometry Calculator is a paid API for AI agents from chemeq.openverbs.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).
Given a chemical reaction equation and a known amount of one species, computes the amount of a target species using auto-balanced stoichiometry.
Price / call$0.004
Success—
StatusUnknown
How this service works
Given a reaction and a known amount (moles or grams) of one species, compute the amount of a target species. The equation is balanced automatically.
Output
A numeric amount of the target species expressed in the requested unit (mol or g), computed using the stoichiometric ratios derived from the auto-balanced reaction equation.
Example use cases
Chemistry homework stoichiometry check
“For the reaction N2 + H2 -> NH3, if I have 3 moles of N2, how many moles of NH3 will be produced?”
Lab mass calculation from known reactant
“I have 20 grams of carbon and I'm burning it with oxygen — C + O2 -> CO2. How many grams of CO2 will I produce?”
Industrial yield estimation
“In the reaction 2Na + Cl2 -> 2NaCl, starting with 50 grams of sodium, how many grams of NaCl can I expect to make?”
Technical details
Endpoint
POSThttps://chemeq.openverbs.com/v1/stoichiometryWhen to prefer
Use this endpoint when you need to determine how much of a product or reactant is involved in a chemical reaction given a known quantity of another species, and you want automatic equation balancing included. Prefer this over manual stoichiometry when the equation may be unbalanced or when converting between mass and mole units across species.
Side effects
- Invalid or unparseable chemical equation returns an error
- Species specified in 'given' or 'target' not found in the equation
- Unrecognized element symbols cause parsing failure
- Zero or negative amount values may produce errors or nonsensical output
- Missing required fields (equation, given species/amount, target) return validation errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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