Àwọn Ìṣàmúlò-ètò

Ṣàfikún laarin [H⁺], pH, pOH ati [OH⁻] ki o si ṣàfikún acidity.

Àwọn ààyè-iṣẹ́

mol/L

Àwọn ìkúndùǹ

Àwọn Ìṣàmúlò-ètò —

pOH —

[H⁺] (mol/L) —

[OH⁻] (mol/L) —

Àwọn Ìjánu-ìṣàmúlò-ètò —

Àwọn Àtòjọ-ẹ̀yàn àwọn ìṣàmúlò-ètò

Ńlà àwọn àwọn ààtò àtòjọ-ẹ̀yàn yìí?

Àkóónú ìṣàmúlò-ètò yìí

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.

Àwọn Àtòjọ-ẹ̀yàn

Kini ìṣàmúlò-ètò pH?

pH ni logarithmu ti a da lori 10 ti o pọju ti ion hydrogen, pH = -log₁₀[H⁺]. Iwọn ti 1×10⁻⁷ mol/L n fun pH ti ko ni ifẹ ti 7.

Bawo ni pH ati pOH ṣe sopọ?

Nínú 25 °C, pH + pOH = 14. Nítorí náà, àlẹ̀mọ̀ pH 3 ní pOH 11, àti ìṣàfarawe hydroxide rẹ̀ ni [OH⁻] = 10⁻¹¹ mol/L.

Kini idi ti a fi lo àwọn ìṣàmúlò-ètò 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.

Kini idi ti pH fi jẹ logarithmic?

Hydrogen-ion concentrations span many orders of magnitude, so a log scale keeps the numbers manageable. Each unit is a tenfold change: pH 4 is ten times more acidic than pH 5 and a hundred times more than pH 6.

Bawo ni mo ṣe lè rí [H⁺] láti inú àwọn ìṣàmúlò-ètò pH?

Ṣàfikún àpéjọ́: [H⁺] = 10^(−pH). pH tí 3̀ náà náà [H⁺] = 10⁻³² = 0.001 mol/L. Yan àwọn à

Ńlátí ìṣàfarawé pH nínú àwọn ìṣàmúlò-ètò?

Yà. Ààyè àìdájú àwọn ààyè àìdájú tí 7 àti àwọn ìṣẹ̀dá pH + pOH = 14 ní 25 °C; ní àwọn ààyè tí o gà jú lọ, àwọn ààyè àìdájú pH tí wọ́ inú àwọn ààyè àìdájú tí 7 àti àwọn

API — ló àwọn ìṣàmúlò-ètò yìí láti inú ìṣàmúlò-ètò

Fi àwọn ìṣàmúlò-ètò yìí kọ̀ǹpútà yìí láti jẹ́ ààyè-iṣẹ́ JSON tí a tí fi pamọ́ - kò ní bọ́tìnì kan tí a fẹ́. Fi àwọn fálù ààyè-iṣẹ́ sílẹ̀ sí bí àwọn àwọn ìṣàmúlò-ètò àti JSON. Anything you omit uses the same default this page is pre-filled with; an unknown parameter is a 400, never a silent zero. Ka àwọn àkọlé API kíkún →

Àwọn Ààyè Ìjánu-ìṣàmúlò-ètò

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);

Results are estimates for general guidance only, not financial, medical or tax advice.

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