Video: Vim li cas cov kua qaub nruab nrab tsim nyog hauv redox titration?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muaj ob qhov laj thawj: Txhawm rau muab hydrogen ions rau cov tshuaj kom acidify nws. Muaj tseeb redox (zoo li permanganate) zoo dua oxidation muaj peev xwm yog ua tau nyob rau hauv ib acidic ib puag ncig. Cov sulfate ion yog ib qho nyuaj ion rau oxidise li niaj zaus redox titrations , yog li koj tsis nquag tau txais byproducts.
Ua li no, yog vim li cas titration ua nyob rau hauv acidic nruab nrab?
Sulfuric Acid (H2SO4) yog siv rau hauv redox titration txheej txheem vim nws muab cov H(+) ions tsim nyog rau cov tshuaj tiv thaiv tshwm sim sai dua thaum lub sulphate (-) ions NW nyuam qhuav tshwm sim thaum lub sij hawm cov tshuaj tiv thaiv. Yog li ntawd, sulfuric kua qaub yog ntxiv los ua tus kua qaub.
Kuj Paub, vim li cas Sulfuric acid siv hauv redox titration es tsis txhob HCL? Raws li dilute sulfuric acid yog zoo tagnrho rau redox titration vim nws tsis yog tus neeg sawv cev oxidizing thiab tsis yog tus neeg sawv cev txo qis. HCL yog ib tug muaj zog electrolyte dissociates nyob rau hauv dej muab H + thiab Cl-ions. Yog li ntawd, qee qhov nyiaj ntawm KMnO4 yog siv nce hauv oxidising Cl- rau Cl2. Ib sab ntawm KMnO4 yog oxidising oxalate ion rau CO2.
Qhov thib ob, vim li cas qhov ntsuas tsis xav tau hauv redox titration?
Hauv qhov kev sim no, Nws yog tsis yog qhov tseem ceeb los siv ib qho qhov taw qhia . Qhov no yog vim tsis muaj pH hloov, qhov kawg ntawm cov tshuaj tiv thaiv tuaj yeem txiav txim siab siv los ntawm kev hloov xim xwb. Peb kuj tuaj yeem txiav txim siab los ntawm kev siv lub voltmeter los qhia qhov muaj peev xwm hluav taws xob. Qhov kawg point tuaj yeem kuaj tau nrog lub voltmeter.
Vim li cas KMnO4 siv hauv cov kua qaub nruab nrab?
Yog li, koj tuaj yeem pom tias cov nyhuv oxidizing ntawm KMnO4 yog siab tshaj nyob rau hauv acidic nruab nrab thiab tsawg kawg hauv qhov pib nruab nrab zoo in acidic nruab nrab Qhov txo qis hauv oxidation xeev ntawm Mn yog max thaum nws yog qhov tsawg tshaj plaws hauv kev yooj yim nruab nrab . Vim li no, acidic nruab nrab yog siv Thaum koj xav tau oxidization muaj zog thiab yooj yim thaum yuav tsum tau oxidization me me.
Pom zoo:
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Koj ua li cas sib npaug redox cov tshuaj tiv thaiv hauv acidic thiab nruab nrab nruab nrab?
Acid Conditions Solution. Kauj Ruam 1: Sib cais ib nrab cov lus teb. Kauj Ruam 2: Ntsuas cov ntsiab lus uas tsis yog O thiab H. Kauj Ruam 3: Ntxiv H2O kom sib npaug ntawm cov pa. Kauj Ruam 4: Sib npaug hydrogen los ntawm kev ntxiv protons (H +). Kauj Ruam 5: Ntsuas tus nqi ntawm txhua qhov sib npaug nrog electrons. Kauj Ruam 6: Ntsuas cov tshuaj tiv thaiv kom cov electrons sib npaug