Video: Dab tsi yog Arrhenius lub tswv yim ntawm acids thiab bases?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov Arrhenius acid - base tswvyim classifies ib yam khoom raws li ib tug kua qaub yog tias nws tsim hydrogen ions H (+) lossis hydronium ions hauv dej. Ib yam khoom raug cais raws li a puag yog tias nws tsim hydroxide ions OH (-) hauv dej. Lwm txoj hauv kev ntawm kev faib cov tshuaj raws li kua qaub los yog hauv paus yog cov Bronsted-Lowry tswvyim thiab Lewis tswvyim.
Ib yam li ntawd, tib neeg nug, Dab tsi yog Arrhenius txhais ntawm acids thiab bases?
Ib Arrhenius acid yog ib yam khoom uas dissociates hauv dej los tsim hydrogen ions los yog protons. Hauv lwm lo lus, nws nce tus naj npawb ntawm H+ ions hauv dej. Nyob rau hauv sib piv, ib Arrhenius puag dissociates hauv dej los tsim hydroxide ions, OH-.
Ib sab saum toj no, qhov teeb meem tseem ceeb ntawm Arrhenius txhais li cas? (Kev zam rau txoj cai ua qhov tsis zoo Arrhenius txoj cai) Acids tsim hydronium ions thaum nws yaj hauv H2O. Muaj pH tsawg dua 7. Bases tsim hydroxide ions thaum yaj hauv H2O.
Ua raws li qhov xav tau, Arrhenius lub tswv yim ntawm cov kua qaub yog dab tsi?
Raws li txhais los ntawm Arrhenius : Ib Arrhenius acid yog ib yam khoom uas dissociates hauv dej los tsim hydrogen ions (H+). Ib Arrhenius puag yog ib yam khoom uas dissociates hauv dej los tsim hydroxide (OH–) cov. Hauv lwm lo lus, lub hauv paus nce qhov concentration ntawm OH– ions nyob rau hauv ib tug aqueous tov.
Dab tsi yog cov ntsiab lus sib txawv ntawm cov kua qaub thiab cov hauv paus?
Ib kua qaub yog ib yam khoom uas dissociates hauv hnyav los tsim ib lossis ntau dua hydrogen ions (H+). A puag yog ib yam khoom uas dissociates nyob rau hauv hnyav los tsim ib los yog ntau tshaj hydroxide ions (OH-).
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