Kalkaaliyihii
Xalka molarity, miisaanka, miisaanka molar ama miisaanka xalka.
Natiijooyinka cusbooneysiinta sida aad ku qorto.
Ku saabsan Kalkaaliyahan
Molarity is the most common way chemists express concentration: the number of moles of solute dissolved per litre of solution, M = moles / litres, with units of mol/L (also written M). The moles of solute come from its mass divided by its molar mass, moles = mass ÷ molar mass, so the full relationship ties together mass, molar mass, volume and concentration. This calculator solves for any one of molarity, mass of solute, solution volume or molar mass, and accepts the volume in litres or millilitres.
As a worked example, dissolving 58.44 g of table salt (NaCl, molar mass ≈ 58.44 g/mol) in enough water to make 1 litre gives 58.44 / 58.44 = 1 mole in 1 L, a 1 M solution. Dissolve 117 g of NaCl instead and you have 2 moles, which in 1 L is a 2 M solution or, in 500 mL, a 4 M solution. Working backwards, to make 250 mL of 0.1 M NaCl you need 0.1 × 0.25 = 0.025 mol, i.e. 0.025 × 58.44 ≈ 1.46 g.
Molarity is the working currency of the lab bench — preparing standard solutions, diluting stock reagents, running titrations and stoichiometry, and mixing buffers all depend on it. Note that it is defined per litre of final solution, not per litre of solvent, so you dissolve the solute and then top up to the target volume rather than adding it to a pre-measured litre of water.
Su'aalaha badanaa la isweydiiyo
Maxaa molarity ah?
Molarity (M) waa mols of solute per litir of xalka. Disolve 58.44 g of NaCl (1 mole) in 1 litir siiyaa xalka 1 M.
Sideen u heli karaa moles ka grams?
Qaybso miisaanka grams by miisaanka molar ee g / mol. 117 g ee NaCl waa 117 / 58.44 = 2 mols.
Sidee badan oo la xalliyo ma u baahanahay in ay molarity iyo tirada la doonayo?
Moles u baahan tahay = molarity × miisaanka litirka, ka dibna tirada = moles × tirada molar. 250 ml oo ah 0.1 M NaCl oo ah 0.1 × 0.25 = 0.025 mol, oo ku saabsan 1.46 g. Set "kala sooc" in tirada ay xisaab-bilowga u sameeyaan.
Ma molarity per litir oo biyo ah ama per litir oo xal ah?
Litir kasta oo xalka dhamaystiran. Dilute xalka, ka dibna ku dar xalka ilaa calaamadda si ay u gaaraan tirada la doonayo - ma aha oo kaliya ku darto in litir buuxa oo biyo ah, taas oo siin lahaa tirada yar oo yar oo ka weyn iyo isku darka hoose.
Waa maxay farqiga u dhexeeya molarity iyo molality?
Molarity waa mols per litir oo xal ah oo u dhaqaaqa si yar oo heerkulka sababtoo ah isbedelada tirada. Molality waa mols per kilogram of solvent iyo waa heerkulka-free.
Sideen u yareeyaa xalka kaydka?
U isticmaal C₁V₁ = C₂V₂: moles sii joogto ah, sidaas daraaddeed tirada ka hor inta aan la mid ah ka dib. Si aad u samayso 1 L of 0.5 M ka 2 M kayd aad u baahan tahay 0.5 × 1 / 2 = 0.25 L of kayd topped ilaa 1 L.
API — isticmaal xisaabinta ka code
Wici xisaabinta sida free JSON endpoint - key ma loo baahan yahay. Dib u soo dir qiimaha goobta hoos ku qoran sida parameters su'aal ama JSON. Wax kasta oo aad ka maqan tahay isticmaalaa default la mid ah ee boggani waa hore loo buuxiyey la; parameter aan la aqoon waa 400, marnaba ma aha zero maqan. Akhri dhammaan API xuquuqda →
Xarafka
GET https://calculator.free/api/v1/molarity/curl
curl "https://calculator.free/api/v1/molarity/?solve=molarity&mass=58.44&molar_mass=58.44&volume=1"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/molarity/?" + new URLSearchParams({
"solve": "molarity",
"mass": "58.44",
"molar_mass": "58.44",
"volume": "1"
}));
const data = await r.json();
console.log(data.results);Natiijooyinka waa tirakoobka loogu talagalay tilmaamaha guud oo keliya, maaha dhaqaale, caafimaad ama talo bixin canshuur.