Molar mass of a chemical formula with brackets and hydrates
Molar mass of a chemical formula with brackets and hydrates - g/mol, Hill formula, atom counts, mass percent per element and moles from a sample in grams
Answeringour last check, 2026-10-20
1 of 1checks answered this week
300 msmedian answer time
$0.01listed price per call
$0.01price it asked us
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Endpoint
GET https://saylorinnovations.com/api/chem/molar-mass
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-20 | valid payment request | 402 | $0.01 | 300 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"formula": "CuSO4.5H2O",
"grams": "10"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"formula": {
"description": "Chemical formula with brackets and hydrate dots, e.g. C6H12O6, Ca(OH)2, CuSO4.5H2O",
"type": "string"
},
"grams": {
"description": "optional sample mass in grams to convert to moles and particles",
"type": "string"
}
},
"required": [
"formula"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"elements": {
"description": "Per element: atom count, standard atomic weight, mass contribution and mass percent of the compound",
"items": {
"properties": {
"atomic_weight": {
"description": "Atomic weight"
},
"atoms": {
"description": "Atoms of the element in the formula",
"type": [
"number",
"null"
]
},
"element": {
"description": "Element symbol",
"type": [
"string",
"null"
]
},
"mass_contribution": {
"description": "Mass contribution"
},
"mass_percent": {
"description": "Mass, as a percentage"
}
},
"type": "object"
},
"type": "array"
},
"formula": {
"description": "Formula used for the calculation",
"type": "string"
},
"has_radioactive_only_elements": {
"description": "True when this has radioactive only elements",
"type": "boolean"
},
"hill_formula": {
"description": "Hill formula",
"type": "string"
},
"molar_mass_g_per_mol": {
"description": "Molar mass g per mol",
"type": "number"
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"sample": {
"description": "True when this is a fixed sample response",
"properties": {
"grams": {
"description": "Sample mass supplied",
"type": [
"number",
"null"
]
},
"molecules_or_formula_units": {
"description": "Molecules or formula units",
"type": [
"number",
"null"
]
},
"moles": {
"description": "Moles in the sample",
"type": [
"number",
"null"
]
}
},
"type": [
"object",
"null"
]
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"total_atoms": {
"description": "Total atoms",
"type": "number"
}
},
"required": [
"molar_mass_g_per_mol",
"elements"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}