Henderson–Hasselbalch buffer
API · /phcalc-api
pH Calculator API
pH和酸碱数学作为API,本地确定性地计算。ph端点可以在描述酸度的四种方式之间自由转换——pH、pOH、水合氢离子浓度[H+]和氢氧根浓度[OH−]:给出任意一个,它使用pH = −log₁₀[H+]、[OH−] = Kw/[H+]和pH + pOH = pKw返回其他值,并将溶液分类为酸性、中性或碱性。strong端点根据强酸或强碱的摩尔浓度给出其pH(对于酸[H+] = c,对于碱[OH−] = c),当溶液稀释到水的自电离变得重要时发出警告。buffer端点应用Henderson–Hasselbalch方程,pH = pKa + log₁₀([A−]/[HA]),根据pKa和共轭碱与酸的比率(直接给出或作为两个浓度)计算缓冲液的pH,也处理基于pKb的碱缓冲液。Kw默认为1×10⁻¹⁴(25°C),可以为其他温度覆盖。所有计算都在本地确定性地进行,因此即时且私密。非常适合化学和生物学实验室工具、滴定和缓冲液制备应用、水处理和鱼缸软件以及科学教育。纯本地计算——无需密钥,无需第三方服务,即时。实时,不存储任何内容。3个端点。这是pH和酸碱化学;对于溶液稀释和摩尔浓度,请使用稀释API。
API salute
salutare- Tempo di attività
- 100.00%
- Sondaggi del server · 24 ore su 24
- Latenza media
- 83 ms
- Sondaggi del server · 24 ore su 24
- Abbonati
- 3,949
- attiva
- Chiamate totali
- 72
- ultimi 7 giorni
Prezzi
Scegli un livello: fatturazione mensile, annullamento in qualsiasi momento.
Free
Gratis
- 2,000 chiamate/mese
- 2 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 15,935 calls/mese
- 2 req/sec
- pH + forte + tampone
- Nessuna carta di credito
Starter
€5.00 /mese
- 30,000 chiamate/mese
- 5 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 27.15k calls/month
- 8 req/sec
- Henderson–Hasselbalch, custom Kw
- Email support
Pro
€15.00 /mese
- 250,000 chiamate/mese
- 15 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 306.5k llamadas/mes
- 20 req/seg
- Pipelines de laboratorio / titulación
- Soporte prioritario
Mega
€49.00 /mese
- 2,000,000 chiamate/mese
- 40 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 1.575M llamadas/mes
- 50 req/seg
- Escala de plataforma
- SLA dedicado
Costruito da
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api.oanor.com/isotopes-api
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api.oanor.com/electrolysis-api
Colligative Properties API
Colligative-properties chemistry maths as an API, computed locally and deterministically. The freezing-point endpoint computes the freezing-point depression ΔTf = i·Kf·m and the resulting lowered freezing point of a solution, from the molality, the cryoscopic constant (1.86 °C·kg/mol for water) and the van 't Hoff factor i — which is 1 for a non-electrolyte like sugar, about 2 for sodium chloride and about 3 for calcium chloride. The boiling-point endpoint computes the boiling-point elevation ΔTb = i·Kb·m and the raised boiling point, with the ebullioscopic constant (0.512 °C·kg/mol for water). The osmotic-pressure endpoint computes the van 't Hoff osmotic pressure Π = i·M·R·T from the molarity, the temperature and the van 't Hoff factor, the pressure that drives osmosis across a semipermeable membrane, returned in atmospheres, kilopascals and bar. Molality is in mol per kg of solvent, molarity in mol per litre of solution and temperature in kelvin. Everything is computed locally and deterministically, so it is instant and private. Ideal for chemistry-education, food-science, antifreeze, desalination and biology app developers, solution and de-icing tools, and STEM teaching. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is colligative properties of solutions; for a compound's molar mass use a molar-mass API and for dilution concentrations a dilution API.
api.oanor.com/colligative-api
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api.oanor.com/stoichiometry-api
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Frammenti di codice
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curl https://api.oanor.com/phcalc-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/phcalc-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/phcalc-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
"https://api.oanor.com/phcalc-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())
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