Ua li cas H + thiab OH ions txiav txim siab pH?
Ua li cas H + thiab OH ions txiav txim siab pH?

Video: Ua li cas H + thiab OH ions txiav txim siab pH?

Video: Ua li cas H + thiab OH ions txiav txim siab pH?
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Cov pH ua hauj lwm raws li qhov taw qhia uas sib piv ib co ntawm cov dej-soluble tshaj plaws ions . Qhov tshwm sim ntawm a pH - ntsuas yog txiav txim siab los ntawm kev txiav txim siab ntawm tus lej ntawm H+ ions thiab tus naj npawb ntawm hydroxide ( OH -) ions . Thaum tus naj npawb ntawm H+ ions sib npaug tus naj npawb ntawm OH - ions , dej yog nruab nrab.

Ua li no, H + thiab OH ions tuaj qhov twg?

Cov kua qaub yog ib qho kev daws nrog ntau dua H+ ions tshaj OH - ions . Cov kua qaub yog ib qho sib xyaw ua ke uas ua rau hydrogen ions ( H+ ) los yog hydronium ions (H3O +) thaum yaj hauv dej. Hydronium ions – yog kev sib xyaw ntawm H+ ions thiab H2O molecules.

H+ cuam tshuam li cas rau Oh? Zoo li pH thiab pOH, muaj kev sib raug zoo ntawm [ H+ ] ion thiab [ OH -] ib too. Peb tau sib tham tias pH lossis pOH hloov pauv, yog li ua lwm yam. Qhov ntau [ H+ ] ions uas nyob rau hauv kev daws, qhov ntau acidic cov tshuaj yog. Qhov ntau [ OH -] ions hauv kev daws, qhov yooj yim tshaj qhov kev daws yog.

Kuj Paub, qhov pH nplai ua haujlwm li cas ntawm H + thiab OH?

Cov pH ntsuas yog siv rau qeb kev daws teeb meem hauv nqe lus ntawm yuav ua li cas acidic los yog yooj yim npaum li cas lawv yog . Nws qhia qhov concentration ntawm hydrogen ions (H +) thiab hydroxide ions ( OH -) hauv kev daws teeb meem. Qhov no pH tus nqi ntawm 7 yog qhov tseem ceeb vim nws qhia txog kev daws teeb meem nruab nrab. Tag nrho lwm yam khoom yog piv rau qhov nruab nrab point.

Puas yog H + acid lossis lub hauv paus?

Yog ib qho ntawm cov ions yog H +, cov tshuaj yog acidic. Lub zog acid hydrogen chloride (HCl) yog ib qho piv txwv. Yog tias ib qho ntawm cov ions yog OH-, qhov kev daws teeb meem yog qhov yooj yim. Ib qho piv txwv ntawm lub hauv paus muaj zog yog sodium hydroxide (NaOH).

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