{"slug":"chemistry-calc-x402tookit-com-empirical-formula-a59ac8","title":"Empirical formula from percent or gram composition by element, and the molecular","host":"chemistry-calc.x402tookit.com","method":"GET","resource":"https://chemistry-calc.x402tookit.com/empirical-formula","category":"other","description":"Empirical formula from percent or gram composition by element, and the molecular formula if you give the molar mass.","price_listed":0.02,"price_asked":0.02,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":674,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:137","eip155:42161","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"composition":"C:40.0,H:6.7,O:53.3"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"composition":{"description":"element:percent (or grams) pairs, e.g. C:40.0,H:6.7,O:53.3","type":"string"},"molarMass":{"description":"Known molar mass in g/mol to find the molecular formula","type":"number"}},"required":["composition"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"asOf":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"disclaimer":{"type":["null","string"]},"empiricalFormula":{"type":["null","string"]},"empiricalMassGPerMol":{"type":["null","number"]},"inputSum":{"type":["null","number"]},"moleRatios":{"properties":{"C":{"type":["null","number"]},"H":{"type":["null","number"]},"O":{"type":["null","number"]}},"type":["null","object"]},"molecularFormula":{},"molecularMultiplier":{},"multiplierUsed":{"type":["null","number"]},"notChecked":{"items":{"type":"string"},"type":["array","null"]},"reasons":{"items":{"type":"string"},"type":["array","null"]},"source":{"type":["null","string"]},"subscripts":{"properties":{"C":{"type":["null","number"]},"H":{"type":["null","number"]},"O":{"type":["null","number"]}},"type":["null","object"]},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-21","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.02,"price_match":true,"latency_ms":674,"error":null}],"description_full":"Empirical formula from percent or gram composition by element, and the molecular formula if you give the molar mass.","last_updated":"2026-10-20T20:48:16.318Z","schemes":["exact"]}