chem.openverbs.com
answeringCompute the molar mass (g/mol) of a chemical formula. Supports nested parentheses and brackets, element multipliers, and hydrate dot notation with coefficients (e.g. "Ca(OH)2", "CuSO4·5H2O", "K4[Fe(CN)6]"). Returns the total mass and the per-element composition with mass fraction percentages.
- Endpoint
- https://chem.openverbs.com/v1/molar-mass
- Price
- $0.004 / call
- Settles via
- cdp
- Category
- —
- Last seen live
- Tue, 08 Sep 2026 05:24:25 UTC
- Last probed
- Tue, 08 Sep 2026 05:24:25 UTC
- First indexed
- Tue, 08 Sep 2026 05:22:25 UTC
- Sources
- cdp-x402
Probe history
Last 1 probes, newest on the right. 100% answered with a payment challenge.
| When | Result | Method | Status | Latency |
|---|---|---|---|---|
| Tue, 08 Sep 2026 05:24:25 UTC | challenge | http-402 | 402 | 988 ms |
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