I-Calculator ye-pH
Guqula phakathi kwe [H⁺], pH, pOH ne [OH⁻] futhi uhlukanise ukusabela.
Iziphetho zivuselelwa uma ubhala.
Malunga nale khadi
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.
Imibuzo ebuzwa kaningi
Yini ifomu le-pH?
I-pH iyi-logarithm engekho esiteji-10 ye-hydrogen-ion concentration, i-pH = −log₁₀[H⁺]. I-concentration ye-1×10⁻⁷ mol/L inikeza i-pH engaguquki engu-7.
Uyini ukuxhumana phakathi kwe-pH ne-pOH?
Ku-25 °C, i-pH + pOH = 14. Ngakho-ke, isixazululo se-pH 3 sine-pOH 11, futhi ukuthambekela kwayo kwe-hydroxide ku- [OH⁻] = 10⁻¹¹ mol/L.
Iyini inkinga ye pH?
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.
Kungani i-pH ilingana?
I-hydrogen-ion concentrations ihlanganisa izimiso eziningi ze-magnitude, ngakho-ke i-log scale igcina inani lilawulwa. Iyunithi ngayinye ishintsha ngezikhathi ezingu-10: i-pH 4 i-acid kakhulu kune-pH 5 futhi i-pH 6 ingaphezu kwe-pH 100.
Ngiyithola kanjani i-[H⁺] kusuka ku-pH?
Buyisela umqondo: [H⁺] = 10^(−pH). I-pH engu-3 inikeza [H⁺] = 10⁻³ = 0.001 mol/L. Khetha "ukusuka ku-pH value" mode futhi i-calculator izobuyisela ukucindezeleka kuwe.
Ingabe i-pH ishintsha ngokushisa?
Yebo. Ingxenye engenalutho ye-7 ne-pH + pOH = 14 imithetho igcina ku-25 °C; ezindaweni eziphakeme amanzi athola i-ionization, ngakho i-pH engenalutho iwela ngaphansi kwe-7 futhi i-sum iwela kancane. Lezi zisetshenziswa zisebenzisa ama-values ajwayelekile we-25 °C.
API — sebenzisa le calculator kusuka kukhodi
Nquma le calculator njenge JSON evulekile yendawo yokuqeda - akukho isithonjana esidingekayo. Thumela amaxabiso endawo ngezansi njengezilungiselelo zombuzo noma i-JSON. Noma yini ongayishiya isebenzisa iphutha elifanayo elifakwe ngaphambili lekhasi; ipharamitha engaziwa yi-400, ayikho i-zero emnyama. Funda i-API egcwele →
Ingxenye yendawo
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);Izibalo ziyisilinganiso esisetshenziswa ukuqondisa kuphela, hhayi ukucebisa ngezimali, ukwelashwa noma ukukhokha.