pH Calculator
Kushandura pakati pe [H⁺], pH, pOH uye [OH⁻] uye kuongorora acidity.
Zvinyorwa zvinogadziridzwa paunenge uchinyora.
Nezve iyi kalkulator
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.
Zvimwe zvinobvunzwa zvakanyanya
Chii chinonzi pH formula?
pH inonziwo basa-10 logarithm yehydrogen-ion concentration, pH = −log₁₀[H⁺]. Kukonzeresa kwe1×10⁻⁷ mol/L kunopa pH yakafanana ne7.
Sei pH uye pOH zvakabatana?
Pa 25 °C, pH + pOH = 14.So mushonga we pH 3 ane pOH 11, uye hydroxide yake concentration ndeye [OH⁻] = 10⁻¹¹ mol / L.
Chii chinonzi pH scale?
Below 7 is acidic, exactly 7 is neutral, and above 7 is basic (alkaline). The scale usually runs 0–14, though very strong acids or bases can fall slightly outside it. The calculator classifies your value as acidic, neutral or basic.
Nei pH iri logarithmic?
Hydrogen-ion concentrations spans akawanda maumbirwo esimba, saka a log scale inoita kuti nhamba dzive dzakachengeteka.Every unit iine shanduko yegumi: pH 4 iine makumi maviri emakore acidic kupfuura pH 5 uye mazana emakore kupfuura pH 6.
Ndinogona sei kuwana [H⁺] kubva pahuwandu hwepH?
Kuchinja pfungwa: [H⁺] = 10^(−pH). A pH ye 3 inopa [H⁺] = 10⁻³ = 0.001 mol/L. Choose "kubva pa pH kukosha" mode uye kalkulator ichadzosera kukonzerwa kwauri.
pH inochinja sei nemamiriro ekunze?
Ndiyo. Nzvimbo isina mvura ye7 uye pH + pOH = 14 runyorwa rwakachengetwa pa25 °C; pamamiriro ekunze akakura, madziro anoionisa zvakanyanya, saka pH isina mvura inosvika pasi pe7 uye huwandu hunokwira zvishoma.
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/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);Zviratidzo zvemubvunzo ndezvekufungidzira kwechinangwa chekudzidzisa chete, kwete zvemari, zvehutano kana zvemari.