Vim li cas qhov kev daws teeb meem yooj yim muaj H + ions?
Vim li cas qhov kev daws teeb meem yooj yim muaj H + ions?

Video: Vim li cas qhov kev daws teeb meem yooj yim muaj H + ions?

Video: Vim li cas qhov kev daws teeb meem yooj yim muaj H + ions?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Qhov laj thawj yog tias dej ntawm nws tus kheej faib rau hauv hydrogen thiab hydroxide ions . Thaum a daws yog heev yooj yim , ntxiv hydroxide ions yuav react nrog ib qho hydronium yuav luag sai li sai tau thaum nws tsim. Yog li cov concentration ntawm hydrogen ions tsawg heev, thiaj li tsawg ua tau feem ntau yuav tsis quav ntsej.

Hais txog qhov no, dab tsi yog cov tshuaj hu ua uas muaj ntau OH ions H + ions?

Acid yog a daws nrog ntau 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.

Tom qab ntawd, lo lus nug yog, H + ions yog dab tsi? Hydrogen ion , nruj me ntsis, lub nucleus ntawm a hydrogen atom sib cais los ntawm nws nrog electron. Cov hydrogen nucleus yog tsim los ntawm ib tug particle nqa ib chav tsev zoo hluav taws xob, hu ua proton (q.v.). Qhov cais hydrogen ion , sawv cev los ntawm lub cim H+, yog li kev cai siv los sawv cev rau proton.

Ua raws li qhov no, puas cov kev daws teeb meem tseem muaj H ions piav qhia vim li cas qhov yooj yim los ntawm kev ua piv txwv?

ions zoo li OH? ions . yog H ? ion concentration ntau dua OH? ion ces cov daws yog acidic. Thiab lawv qhia yooj yim tus cwj pwm yog OH? ion concentration yog ntau tshaj H ? ion concentration. Qhov ntawd txhais tau tias lawv yog yooj yim vim muaj ntau OH- ions.

Cov kua qaub puas muaj OH ions?

Hauv chemistry, acids thiab bases muaj tau txhais txawv los ntawm peb pawg ntawm kev xav. Ib qho yog Arrhenius txhais, uas tig los ntawm lub tswv yim tias acids yog cov khoom uas ionize (slov tawm) nyob rau hauv ib tug aqueous daws los tsim hydrogen (H+) ions thaum bases tsim hydroxide ( OH -) ions hauv daws.

Pom zoo: