I-Molecular Weight Calculator
Ubunzima bemolar befomula yekhemikhali, nobuninzi bezinto nganye ezichaphazelayo.
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The molecular weight, or molar mass, of a compound is the mass of one mole of it in grams per mole, found by adding up the standard atomic weight of every atom in its chemical formula. This molecular weight calculator parses a formula you type — element symbols with optional subscripts, nested parentheses, and a leading multiplier for hydrates — and sums the atomic weights, drawing on IUPAC standard values (hydrogen 1.008, carbon 12.011, oxygen 15.999, and so on).
As a worked example, water H2O contains two hydrogen atoms and one oxygen: 2 × 1.008 + 15.999 = 18.015 g/mol. Glucose C6H12O6 sums to 6 × 12.011 + 12 × 1.008 + 6 × 15.999 = 180.156 g/mol. The calculator also returns a per-element breakdown showing each element’s atom count, atomic weight, mass subtotal and percentage of the total mass — so for water it reports oxygen as about 88.8% of the mass and hydrogen the rest.
The parser understands parentheses and hydrate dot-notation, so Ca(OH)2 is read as one calcium, two oxygen and two hydrogen (74.09 g/mol) and CuSO4.5H2O includes the five waters of crystallisation (249.68 g/mol). Molar mass is the essential bridge between the mass you weigh on a balance and the moles a reaction needs, so it underlies solution preparation, reaction stoichiometry, yield calculations and converting between grams and moles at every step of quantitative chemistry.
Imibuzo ebuza rhoqo
Ubunzima be-molecule bubalolwa njani?
Ubunzima be-atomic yezinto nganye uphindaphindwe ngenani le-atoms efomula iqulethe, emva koko udibanisa. Umanzi (H₂O) ngu-2 × 1.008 + 15.999 = 18.015 g/mol.
Ifomula yegama eligqithisiweyo
Element symbols with optional counts, nested parentheses and a leading multiplier for hydrates. Ca(OH)2 is read as one calcium, two oxygen and two hydrogen; CuSO4.5H2O includes five waters.
Yintoni utshintsho phakathi kobunzima bemolekyuli kunye nobunzima bemolekyuli?
Ixabiso lenani elifanayo. Ubunzima bemolekyuli (okanye ubunzima bemolekyuli) yimifanekiso ehambelanayo kwi daltons yemolekyuli enye; ubunzima bemolekyuli yisisindo semole kwigram nganye ye mole. Zonke zilingana nobunzima beatomic.
Ndiza kuyifaka njani i-hydrate efana ne-copper sulfate pentahydrate?
Sebenzisa incopho phambi kweqela lamanzi: CuSO4.5H2O. I-5 ephambili iphindaphindo i-H2O, idibanisa amanzi amahlanu ekristale, kwaye i-calculator ibuyisela i-249.68 g/mol yale hydrate.
Yintoni iphesenti yokwenziwa kwayo ebonisa?
Izinto nganye inika inxalenye yezinto ezikwisisindo esipheleleyo. Kumanzi, ioksijini imalunga ne-88.8% ne-hydrogen i-11.2%; kwi-glucose, i-carbon i-40.0%, i-hydrogen i-6.7% ne-oxygen i-53.3% — esetyenziswa kwifomula ye-empirical kunye nomsebenzi wokungafani.
Kutheni ifomula yam ayiphumelelanga ukuchazwa ngezijungqu?
Uphawu lwengxenye nganye kufuneka lubhalwe phezulu ngokuchanekileyo (Co yi cobalt, kodwa CO yi carbon kunye ne oxygen), kwaye kuphela izinto ezibonakalayo ezisemthethweni zivunyelwe. Khangela iimpawu ezincinci, izibiyeli ezingalinganiyo okanye iimpazamo zokuchwetheza ukuba ubona imposiso yokuqwalaselwa.
Ndiyibala njani isisindo se-molecule se-polyatomic ion okanye iqela?
Ewe - gubungela iqela kwiingqungquthela ngokuphindaphindiweyo kwayo, njenge Ca( OH) 2 okanye (NH4) 3PO4. Umqulunqi weparser ukhupha iziqingatha zoluhlu uphindaphinda ii atoms eziqukuqelayo, ngoko i ammonium phosphate idibanisa ngokuchanekileyo phakathi kweqela ngalinye le ammonium.
API — sebenzisa le calculator ukusuka kwikhowudi
Nceda le khadi lemali njengendawo esemva ye-JSON ekhululekileyo - akukho qhosha lifunekayo. Thumela amaxabiso endawo ezantsi njengeparameter yombuzo okanye i-JSON. Nantoni na oyenzayo isebenzisa okungagqibekanga okufanayo eli phepha ligqityiwe ngaphambili; iparameter engaziwayo yi 400, ayikho i zero ekhululekileyo. Funda i-API epheleleyo →
Incopho yesiphelo
GET https://calculator.free/api/v1/molecular-weight/curl
curl "https://calculator.free/api/v1/molecular-weight/?formula=H2O"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/molecular-weight/?" + new URLSearchParams({
"formula": "H2O"
}));
const data = await r.json();
console.log(data.results);Results are estimates for general guidance only, not financial, medical or tax advice.