Molarity Calculator
Kugadzirisa molarity, maseru, molar maseru kana huwandu hwemushonga.
Zvinyorwa zvinogadziridzwa paunenge uchinyora.
Nezve iyi kalkulator
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.
Zvimwe zvinobvunzwa zvakanyanya
Chii chinonzi molarity?
Molarity (M) inoratidza kuti pane mamole ezvinhu zvakagadziriswa mu1 litre yemvura. Kuchenesa 58.44 g yeNaCl (1 mole) mu1 litre kunopa 1 M solution.
Maitiro ekuwana moles kubva kugramu?
Chiva masendimita emvura neiyo molar mass yemvura mu g/mol. 117 g yeNaCl i 117 / 58.44 = 2 moles.
Ndezvipi zvinobuda mumvura zvandinofanira kushandisa kuti ndiwane chinangwa chekuenzanisa nehuwandu?
Moles zvinoda = molarity × huwandu muliters, uyezve maseru = moles × molar maseru. For 250 mL of 0.1 M NaCl that is 0.1 × 0.25 = 0.025 mol, about 1.46 g. Set "solve for" to mass to have the calculator do it.
I molarity per litre of water or per litre of solution?
Per litre of finished solution. Dissolve the solute, then add solvent up to the mark to reach the target volume — don’t simply add it to a full litre of water, which would give a slightly larger volume and lower concentration.
Chii chinonzi chiyero chekuenzanisa pakati pemolecule nemolecule?
Molarity i moles pa litre yemushonga uye inochinja zvishoma nenguva nekuti huwandu hunochinja. Molality i moles pa kilogram yemushonga uye haina kuenderana nenguva.
Ndiani anofanira kuisa mari yemubhadharo?
Usashandisa C₁V₁ = C₂V₂: moles inogara ichiramba ichienderera, saka kusvibiswa kwenguva yevolume yapfuura inoenderana neyekutevera. Kuti uite 1 L ye0.5 M kubva ku2 M stock iwe unofanirwa 0.5 × 1 / 2 = 0.25 L yestock yakakwira kusvika ku1 L.
API — kushandisa iyi kalkulator kubva code
Nhare iyi calculator semahara JSON endpoint - hapana chikuru zvinodiwa. Kutumira nzvimbo mavara pasi separameter query kana JSON. Chii zvachose chaunoisa kunze chinoshandisa default iyo peji iri rakasviba nayo; parameter isiri yechokwadi inonzi 400, uye haisi zero. Tora yakazara API docs →
Endpoint
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);Zviratidzo zvemubvunzo ndezvekufungidzira kwechinangwa chekudzidzisa chete, kwete zvemari, zvehutano kana zvemari.