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Video: Cov tshuaj tiv thaiv dab tsi tshwm sim thaum cawv tsim los ntawm alkene?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nplooj ntawv no saib ntawm kev tsim cov cawv los ntawm kev ncaj qha hydration ntawm alkenes - ntxiv dej ncaj qha mus rau carbon-carbon ob daim ntawv cog lus. Ethanol yog tsim los ntawm reacting ethene nrog chav. Cov tshuaj tiv thaiv yog thim rov qab. Tsuas yog 5% ntawm ethene hloov mus rau hauv ethanol ntawm txhua qhov dhau los ntawm lub reactor.
Ua raws li qhov kev pom no, koj ua li cas ua ib qho alkene los ntawm cawv?
Los ntawm acid catalysed hydration ntawm alkenes
- Kauj Ruam 1: Alkene tau txais protonation los ua carbocation los ntawm electrophilic nres ntawm H3O+.
- Kauj Ruam 2: Dej, ua ib qho nucleophile, tawm tsam ntawm carbocation.
- Kauj Ruam 3: Deprotonation tshwm sim los ua ib qho cawv.
Ib sab saum toj no, hom tshuaj tiv thaiv dab tsi yog lub cev qhuav dej ntawm cawv? Cov tshuaj tiv thaiv lub cev qhuav dej yog ib hom tshuaj tiv thaiv nyob rau hauv dej yog tsim los ntawm extraction ntawm cov khoom ntawm dej los ntawm ib qho reactant. Ib qho alkene yog tsim thaum lub cev qhuav dej ntawm cawv ua tiav.
Kuj Paub, ua li cas cawv tsim los ntawm alkanes?
Cawv tuaj yeem ua los ntawm alkyl halides, uas tuaj yeem ua los ntawm alkanes . Yog li los ntawm converting ib alkane rau hauv alkyl halide los ntawm cov dawb radical halogenation mechanism thiab tom qab ntawd los ntawm kev kho cov alkyl halide nrog lub hauv paus muaj zog zoo li NaOH lossis KOH peb tuaj yeem tau txais. cawv …
Yuav ua li cas thaum alkene reacts nrog dej?
Alkenes undergo ib qho ntxiv tshuaj tiv thaiv nrog dej nyob rau hauv lub xub ntiag ntawm ib tug catalyst los tsim ib tug cawv. Hom kev sib ntxiv no tshuaj tiv thaiv hu ua hydration. Cov dej yog ntxiv ncaj qha rau carbon - carbon ob daim ntawv cog lus. Lub hydration ntawm alkenes tuaj yeem ua tau los ntawm ntau txoj kev.
Pom zoo:
Vim li cas cov tshuaj tiv thaiv kev zom zaub mov hu ua hydrolysis cov tshuaj tiv thaiv?
Thaum lub sij hawm zom mov, piv txwv li, decompositionreactions zom cov zaub mov loj rau hauv cov me me los ntawm kev ntxiv cov dej molecules. Hom tshuaj no hu ua hydrolysis. Raws li dej absorbs heatenergy, qee lub zog yog siv los rhuav tshem hydrogenbonds
Cov tshuaj twg yog ib txwm tsim los ntawm cov tshuaj tiv thaiv neutralization?
Cov tshuaj tiv thaiv acid-base neutralization ib txwm ua rau ntsev. Qee zaum dej tsuas yog tsim cov tshuaj tiv thaiv uas muaj cov ntses bass thaj tsam muaj zog. Yog li cov lus teb yog ntsev
Qhov kev sib npaug twg yog qhov tsim nyog los suav cov cua sov uas tsim los ntawm HCl NaOH cov tshuaj tiv thaiv?
Xam cov naj npawb ntawm moles ntawm lub hauv paus koj ntxiv los txiav txim siab molar tshav kub ntawm qhov nruab nrab, qhia siv qhov sib npaug Δ H = Q ÷ n, qhov twg 'n' yog tus naj npawb ntawm moles. Piv txwv li, xav tias koj ntxiv 25 mL ntawm 1.0 M NaOH rau koj HCl los ua kom muaj cua sov ntawm nruab nrab ntawm 447.78 Joules
Cov tshuaj tiv thaiv dab tsi yog qhov tshuaj tiv thaiv neutralization?
Neutralization yog ib hom tshuaj tiv thaiv nyob rau hauv uas muaj zog acid thiab muaj zog puag react nrog ib leeg los tsim dej thiab ntsev
Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus