Video: Qhov ntsuas twg tsim nyog rau titration ntawm HCl thiab NaOH?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tej zaum feem ntau yog phenolphthalein tab sis nws tsis tau hloov ntawm ntshiab mus rau liab mus txog rau pH 9; yog li ntawd dhau- titrating tus HCl mus rau ib tug degree.
Tib neeg kuj nug, qhov ntsuas twg yog qhov tsim nyog rau titration ntawm HCl thiab NaOH thiab vim li cas?
Methyl txiv kab ntxwv
Puas yog HCl muaj zog acid? A muaj zog acid yog ib kua qaub uas yog kiag li ionized nyob rau hauv ib tug aqueous tov. Hydrogen chloride ( HCl ) ionizes tag nrho rau hauv hydrogen ions thiab chloride ions hauv dej. Ib qho tsis muaj zog kua qaub yog ib kua qaub uas ionizes tsuas yog me ntsis hauv cov tshuaj aqueous. Vim HCl yog a muaj zog acid , nws conjugate puag (Cl−) yog qaug zog heev.
Hais txog qhov no, qhov ntsuas twg yuav yog qhov zoo tshaj plaws los siv rau titration?
phenolphthalein
Puas yog NaOH yog cov kua qaub lossis lub hauv paus?
NaOH yog a puag vim tias thaum yaj hauv dej nws dissociates rau Na + thiab OH- ions. Nws yog OH- (hydroxyl ion) uas ua rau NaOH a puag . Nyob rau hauv classical lub sij hawm a puag yog txhais raws li ib tug compound uas reacts nrog ib kua qaub tsim ntsev thiab dej raws li tau piav qhia los ntawm qhov sib npaug hauv qab no. NaOH + HCl = NaCl + H2O.
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