Kalkulator Molarity
Digunakeun pikeun ngajelaskeun massa, massa molar, mol, mol-mol.
Hasilne bakal dioptimalake nalika sampeyan ngetik.
Ngenai kalkulator iki
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.
Takon-takon kang kerep diajukake
Apa iku molaritas?
Molarity (M) nyaéta mol tina solute per liter larutan. Ngaleupaskeun 58. 44 g NaCl (1 mol) dina 1 liter bakal masihan larutan 1 M.
Apa sing dadi sebabe saka kerusakan kulit?
117 g NaCl = 117 / 58.44 = 2 mol, 117 g NaCl = 117 / 58.44 = 2 mol, 117 g NaCl = 117 / 58.44 = 2 mol.
Apa sing kudu aku lakoni kanggo ngganti ukuran lan volume?
Moles dibutuhkeun = molarity × volume dina liter, mangka massa = moles × massa molar. Pikeun 250 mL tina 0.1 M NaCl anu 0.1 × 0.25 = 0.025 mol, kira-kira 1.46 g. Set "solve for" ka massa pikeun kalkulator ngalakukeun éta.
Molarity per liter of water or per liter of solution?
Per liter larutan réngsé. Leburkeun larutan, tuluy tambahkeun pelarut nepi ka tanda pikeun ngahontal volume target - henteu ngan tambahkeun kana liter cai, anu bakal masihan volume anu langkung ageung sareng konsentrasi anu langkung handap.
Apa bedane antara molarity lan molality?
Molarity nyaéta mol per liter larutan sarta pindah saeutik kalayan suhu sabab volumena béda. Molality nyaéta mol per kilogram pelarut sarta teu gumantung kana suhu. Alat ieu ngahitung molarity.
Carane aku bisa nyuda solusi saham?
Gunakeun C₁V₁ = C₂V₂: mol tetep konstan, jadi konsentrasi kali volume saméméh sami sanggeus. Pikeun nyieun 1 L tina 0.5 M ti 2 M stock anjeun kedah 0.5 × 1 / 2 = 0.25 L stock di luhureun 1 L.
API — gunakake kalkulator iki saka kode
Ngadongékeun kalkulator ieu minangka titik akhir JSON bébas — teu peryogi kunci. Kirim nilai medan di handapeun minangka parameter pitakonan atawa JSON. Anything you omit uses the same default this page is pre-filled with; an unknown parameter is a 400, never a silent zero. Waca dokumen lengkap API →
Tampilan
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);Hasilna nyaéta perkiraan pikeun pituduh umum, henteu saran finansial, médis atanapi pajak.