Video: Vim li cas qhov ntsuas tsis siv hauv kmno4 titration?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog vim li cas ib qhov taw qhia tsis siv hauv titration ntawm poov tshuaj permanganate nrog oxalic acid? Cov xim ntawm cov poov tshuaj permanganate yog cov qhov taw qhia . Thawj qhov poob ntawm ntau tshaj MnO4- yuav muab cov xim liab mus tas li rau cov tshuaj tiv thaiv-yog li muaj tsis muaj xav tau ib qho ntxiv qhov taw qhia.
Ib yam li ntawd ib tug yuav nug, dab tsi yog qhov taw qhia siv hauv KMnO4 titration?
Permanganate Titration EndpointA redox titration siv poov tshuaj permanganate raws li titrant. Vim nws lub ntsej muag liab qab, KMnO4 ua hauj lwm raws li nws tus kheej qhov taw qhia . Nco ntsoov tias qhov kawg mus txog li cas thaum cov tshuaj tseem tshuav me ntsis ntshav.
Qhov thib ob, vim li cas KMnO4 siv los ua tus ntsuas tus kheej? Feem ntau KMnO4 yog siv hauv titrations tiv thaiv kev daws teeb meem xws li oxalic acid, FAS (ferrous ammonium suphate, thiab lwm yam,). KMnO4 oxidises cov qauv kev daws teeb meem. Yog li KMnO4 qhia tias tus txheej txheem daws tau oxidized tag. Yog li KMnO4 ua li tus kheej taw qhia !
Tom qab ntawd, vim li cas ho tsis muaj qhov taw qhia siv nyob rau hauv 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.
Puas yog qhov ntsuas xav tau rau titration nyob rau hauv uas poov tshuaj permanganate yog titrant?
Permanganate titrations tsis txhob xav tau siv ntawm ntsuas . Permanganate nws tus kheej muaj qhov khaus heev, ntshav liab, thiab me me dhau ntawm cov titrant feem ntau yog txaus rau xim cov tshuaj thiab teeb liab point kawg.
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