Nhazi
Kpọnye n'etiti [H⁺], pH, pOH na [OH⁻] nakwa họrọ acidity.
Nhọrọ ndị ahụ ga-akpụzi mgbe ị na-etipụta.
N'ihe banyere calculator a
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.
Ajụjụ ndị a na-ajụkarị
Gịnị bụ pH?
pH bụ logarithm nke 10 nke okpuru-10 nke hydrogen-ion concentration, pH = −log₁₀[H⁺]. A concentration nke 1×10⁻⁷ mol/L na-enye pH nke 7.
Olee otú pH na pOH si arụkọ ọrụ?
N'ime 25 °C, pH + pOH = 14. Ya mere, ihe na-agwọta nke pH 3 nwere pOH 11, na nrụnye hydroxide ya bụ [OH⁻] = 10⁻¹¹ mol/L.
Gịnị bụ ihe nlereanya pH?
N'okpuru 7 bụ acidic, n'ezie 7 bụ neutral, na n'elu 7 bụ base (alkaline). Nhazi ahụ na-agba ọsọ 0-14, ọbụna ma acids ma ọ bụ base ndị dị ike nwere ike ịbanye n'ebe ọbụla n'ebe ọbụla. Calculator na-ahazi valiu gị dịka acidic, neutral ma ọ bụ base.
Gịnị mere pH ji bụrụ logarithmic?
Hydrogen-ion concentrations span many orders of magnitude, so a log scale keeps the numbers manageable. Enweghị mgbanwe ọ bụla: pH 4 bụ ugboro iri karịa acidic karịa pH 5 na ugboro iri karịa pH 6.
Olee otú m ga-esi hụ [H⁺] site na uru pH?
Kwụsị nkọwa: [H⁺] = 10^(−pH). pH nke 3 na-enye [H⁺] = 10⁻³ = 0.001 mol/L. Họrọ "site na uru pH" mode na kalkulata na-eziga n'ihu n'ime maka gị.
Ònye bụ pH na-agbanwe na okpomọkụ?
Ya. Nnọọ n'okpuru 7 na pH + pOH = 14 iwu na-echekwa na 25 °C; na okpomọkụ elu mmiri na-ionisị karịa, ya mere pH n'okpuru 7 na sum na-apụta n'ụzọ dị mfe. Tul ahụ na-eji ụkpụrụ 25 °C.
API — jiri kaadị a site na kóòdù
Kpọọ kalkulata a dịka ebe ngwụcha JSON n'efu - enweghị kii achọrọ. Ziga valiu ebe ahụ n'okpuru dịka paramita ajụjụ mọọbụ JSON. Ihe ọbụla ị na-ewepụ na-eji dìfọ́ọ̀ltụ̀ nke a na-edebe ihuakwụkwọ a na ya; parameter a na-amaghị bụ 400, ọ dịghị sẽọ̀rọ̀. Gụọ ngwe ndị ahụ niile →
Ebemkpofuozi
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);Ihe a na-ahụta bụ n'ihi nlekọta n'ozuzu ya, ọ bụghị nlekọta ego, ọgwụ ma ọ bụ nlekọta ego.