Molekül agramy hasaplaýjy
Molar mass of a chemical formula, with a per-element mass breakdown.
Netijeler ýazýan wagtyň täzelener.
Bu hasapçy hakda
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.
Köp soralýan soraglar
Molekül agramy nädip hasap edilýär?
Her bir elementiň atom agramyny formulada bar bolan atomlaryň sanyny bilen çarpyň, soňra olary goşyň. Suw (H₂O) 2 × 1.008 + 15.999 = 18.015 g/mol.
Formuly nädip ugratmaly?
Element simwollary islendik san bilen, öwrümli çepkeler we hidratlar üçin öňki köpeldiji bilen. Ca(OH)2 bir kalsiyum, iki oksijen we iki hidrojen ýaly okalýar; CuSO4.5H2O bäş suwy içer.
Molekül agramy we molar agramy arasyndaky tapawut näme?
Numerically they are the same value. Molecular weight (or molecular mass) is a relative figure in daltons for one molecule; molar mass is the mass of a mole in grams per mole. Both equal the summed atomic weights.
Men bir hidratny nädip girizmeli?
Use a dot before the water group: CuSO4.5H2O. The leading 5 multiplies the H2O, adding five waters of crystallisation, and the calculator returns 249.68 g/mol for that hydrate.
Bu näçe göterim kompozisiýa görkezýär?
Her bir element üçin ol elementiň jemi kütleden paýy berýär. Suwda, oksijen 88.8% we hidrogenez 11.2%; glukozda, karbon 40.0%, hidrogenez 6.7% we oksigen 53.3% - empirik-formula we arassalyk iş üçin peýdaly.
Formuläm näme üçin parslanmady?
Her element simwoly dogry uly harp bilen ýazylmalydyr (Co kobalt, CO bolsa karbon we oksijen), we diňe akyly elementler kabul edilmelidir. Eger parslama hata görseň kiçi harp simwollary, deň gelmeýän çepler ýa-da ýazma hatalary üçin barla.
Men bir poliatom ion ýa-da toparyň molar kütlesini hasaplap bilermi?
Eý, topary onuň köpeldijisi bilen kaýnaklarda dolap, Ca(OH)2 ýa-da (NH4)3PO4 ýaly. Parser kaýnaklary giňeldýär we içindeki atomlary köpeldýär, şeýlelik bilen ammonium phosphate üç ammonium toparyň ählisinde dogry birikdir.
API — bu hasapçyny koddan ullan
Bu hasapçyny boş JSON ahtar noktasy hökmünde çagyr - açar gerek däl. Aşakdaky meýdança mykdarlaryny soragyň parametrleri ýa-da JSON hökmünde iber. Siziň goýmaýan hernäňiz şu sahypanyň öň bellenen öň bellenenini ulanýar; namydar parametr 400, hiç wagt sessiz sıfır däl. Eňlisçe senedleri oka →
Endpoint
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);Netijeler diňe umumy ýardam üçin hasaplanypdyr, maliýe, saglyk ýa-da salgyt maslahaty üçin däl.