Yuav siv pH scale li cas?
Yuav siv pH scale li cas?

Video: Yuav siv pH scale li cas?

Video: Yuav siv pH scale li cas?
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Cov pH ntsuas yog siv txhawm rau txheeb xyuas cov ntsiab lus ntawm acidity los yog hauv paus (alkalinity). Txij li thaum nplai yog nyob ntawm pH tus nqi, nws yog logarithmic, txhais tau tias hloov ntawm 1 pH unit sib raug mus rau kaum-fold hloov hauv H + pib superscript, ntxiv rau, kawg superscript ion concentration.

Tsis tas li ntawd, pH siv li cas?

Nws yog siv hauv ntau daim ntawv thov. Piv txwv li, lub pas dej da dej yuav tsum tau saib xyuas tas li los ntawm kev txheeb xyuas nws pH . Yog tias cov dej dhau los ua acidic lossis yooj yim dhau, cov tshuaj acidic lossis cov tshuaj yooj yim yuav tsum tau ntxiv rau hauv cov dej kom sib npaug ntawm H + ions thiab OH- ions. pH kuj tseem ceeb heev thaum nws los txog rau lub cev.

Tsis tas li ntawd, pH nplai siv los ntsuas acidity li cas? Cov pH ntsuas thaj tsam ntawm 0 mus rau 14. Lub pH ntawm kev daws yog ib ntsuas ntawm nws acidity los yog alkalinity (puag). Koj muaj tej zaum siv litmus daim ntawv, daim ntawv uas tau kho nrog ib tug natural water-soluble dye thiaj li ua tau siv as a pH qhia, to xeem npaum li cas kua qaub los yog puag (alkalinity) muaj nyob rau hauv ib qho kev daws.

Ib yam li ntawd, pH nplai ua haujlwm li cas?

Ib yam khoom uas tsis yog acidic lossis yooj yim yog nruab nrab. Cov pH ntsuas ntsuas seb acidic los yog ib qho tseem ceeb npaum li cas. Cov pH ntsuas thaj tsam ntawm 0 mus rau 14. Lub pH ntsuas yog logarithmic thiab yog li ntawd, txhua tus tag nrho pH tus nqi qis dua 7 yog kaum npaug acidic dua li tus nqi siab dua tom ntej.

Vim li cas pH nplai tseem ceeb?

pH yog tseem ceeb vim hais tias cov khoom xws li peb lub plab acids yuav nyob ntawm ib yam pH txhawm rau ua haujlwm kom raug. pH kuj yog tseem ceeb vim hais tias nws yuav tsum nyob rau ntawm tej theem thiaj li muaj sia nyob. Tsim ib qho loj pH ntsuas (ob lossis peb meters ntev).

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