Kalkulatur tal-pH
Aqleb bejn [H⁺], pH, pOH u [OH⁻] u kklassifika l-aċidità.
Riżultati aġġornament kif inti tip.
Dwar din il-kalkulatur
The pH scale measures how acidic or basic a solution is, defined as the negative base-10 logarithm of the hydrogen-ion concentration: pH = −log₁₀[H⁺], where [H⁺] is in moles per litre. Because it is logarithmic, each whole pH unit is a tenfold change in acidity — a pH 4 solution has ten times the [H⁺] of pH 5 and a hundred times that of pH 6. The scale runs from strongly acidic near 0, through neutral at 7, to strongly basic near 14. This calculator converts a concentration to pH, a pH back to concentration, or starts from pOH.
As a worked example, pure water has [H⁺] = 1 × 10⁻⁷ mol/L, so pH = −log₁₀(10⁻⁷) = 7, which is neutral. A solution with [H⁺] = 10⁻³ mol/L has pH 3 and is acidic; one with pH 11 is strongly basic. The tool also returns pOH and the hydroxide concentration [OH⁻], using the water relationship pH + pOH = 14 at 25 °C — so pH 3 implies pOH 11 and [OH⁻] = 10⁻¹¹ mol/L — and labels the result acidic, neutral or basic.
pH governs a huge range of everyday and industrial processes: the safety of drinking water and swimming pools, soil conditions for gardening, food preservation and brewing, the action of enzymes in the body (blood is tightly held near pH 7.4), and countless chemistry and biology experiments. Note that the 14-point span and the pH + pOH = 14 rule are specific to 25 °C; at other temperatures the neutral point and the sum shift slightly because water’s self-ionisation changes.
Mistoqsijiet li jsiru ta' spiss
X'inhi l-formula pH?
pH huwa l-logaritmu negattiv tal-bażi 10 tal-konċentrazzjoni tal-joni tal-idroġenu, pH = −log₁₀[H⁺] Konċentrazzjoni ta' 1×10⁻⁷ mol/L tagħti pH newtrali ta' 7.
Kif huma pH u pOH relatati?
F'temperatura ta' 25 °C, pH + pOH = 14, għalhekk soluzzjoni ta' pH 3 għandha pOH 11, u l-konċentrazzjoni ta' idrossidu tagħha hija [OH⁻] = 10⁻¹¹ mol/L.
X'inhi tfisser l-iskala pH?
Taħt 7 huwa aċiduż, eżattament 7 huwa newtrali, u fuq 7 huwa bażiku (alkalin).L-iskala normalment timxi 0-14, għalkemm aċidi b'saħħithom ħafna jew bażijiet jistgħu jaqgħu ftit barra minnha.Il-kalkulatur jikklassifika l-valur tiegħek bħala aċiduż, newtrali jew bażiku.
Għaliex pH huwa logaritmika?
Il-konċentrazzjonijiet tal-joni tal-idroġenu jvarjaw f'ħafna ordnijiet ta' daqs, u għalhekk skala log iżżomm in-numri maniġġabbli.Kull unità hija bidla ta' għaxar darbiet: pH 4 huwa għaxar darbiet aktar aċiduż minn pH 5 u mitt darba aktar minn pH 6.
Kif insib [H⁺] minn valur ta’ pH?
Ibdel id-definizzjoni: [H⁺] = 10^(−pH). pH ta' 3 jagħti [H⁺] = 10⁻³ = 0.001 mol/L. Agħżel il-modalità "minn valur pH" u l-kalkulatur jirritorna l-konċentrazzjoni għalik.
Il-pH jinbidel bit-temperatura?
Iva. Il-punt newtrali ta’ 7 u r-regola pH + pOH = 14 jibqgħu fis-seħħ fil-25 °C; f’temperaturi ogħla l-ilma jijonizza aktar, għalhekk il-pH newtrali jaqa’ taħt is-7 u s-somma tonqos ftit. Din l-għodda tuża l-valuri standard tal-25 °C.
API — uża din il-kalkulatur mill-kodiċi
Sejjaħ dan il-kalkulatur bħala punt aħħari JSON b'xejn — l-ebda ċavetta meħtieġa Ibgħat il-valuri tal-qasam hawn taħt bħala parametri tal-mistoqsija jew JSON. Kull ħaġa li tħalli barra tuża l-istess default li din il-paġna hija mimlija minn qabel; parametru mhux magħruf huwa 400, qatt żero sieket. Aqra d-dokumenti sħaħ tal-API →
Punt aħħari
GET https://calculator.free/api/v1/ph/curl
curl "https://calculator.free/api/v1/ph/?mode=conc&conc=1e-07&phval=7"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/ph/?" + new URLSearchParams({
"mode": "conc",
"conc": "0.0000001",
"phval": "7"
}));
const data = await r.json();
console.log(data.results);Ir-riżultati huma stimi għal gwida ġenerali biss, mhux parir finanzjarju, mediku jew tat-taxxa.