Video: Qhov kev txiav txim ntawm sn1 cov tshuaj tiv thaiv yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov SN1 tshuaj tiv thaiv yog kev hloov pauv tshuaj tiv thaiv hauv organic chemistry. "SN" sawv cev rau "kev hloov pauv nucleophilic", thiab "1" hais tias qhov kev txiav txim siab theem yog unimolecular. Yog li, qhov sib npaug feem ntau pom tias muaj thawj- xaj dependence rau electrophile thiab zero- xaj dependence rau nucleophile.
Raws li, qhov kev txiav txim ntawm sn2 cov tshuaj tiv thaiv yog dab tsi?
Feem ntau, cov xaj ntawm reactivity ntawm alkyl halides nyob rau hauv SN2 cov tshuaj tiv thaiv yog: methyl > 1 ° > 2 °. Lub 3 ° alkyl halides yog neeg coob heev uas lawv tsis feem ntau teb los ntawm ib SN 2 tshuab.
Kuj Paub, muaj pes tsawg kauj ruam nyob rau hauv sn1 cov tshuaj tiv thaiv? ob kauj ruam
Qhov thib ob, dab tsi yog txhais los ntawm sn1 cov tshuaj tiv thaiv?
SN1 txhais . Cov SN1 cov tshuaj tiv thaiv - Kev hloov pauv Nucleophilic uas tus nqi txiav txim siab txog qib suav nrog 1 feem. - SN1 cov tshuaj tiv thaiv yog unimolecular, pib los ntawm qhov nruab nrab carbocation. - SN1 cov tshuaj tiv thaiv muab racemization ntawm stereochemistry ntawm lub tshuaj tiv thaiv chaw.
Qhov twg yog tus nqi txiav txim kauj ruam hauv sn1 cov tshuaj tiv thaiv?
Hauv SN1 tshuaj tiv thaiv , cov tus nqi txiav txim kauj ruam yog qhov poob ntawm pawg tawm mus tsim cov carbocation nruab nrab. Qhov ruaj khov dua qhov carbocation yog, qhov yooj yim dua nws yog tsim, thiab sai dua SN1 tshuaj tiv thaiv yuav yog.
Pom zoo:
Dab tsi yog cov khoom lag luam hauv kev sib npaug molecular rau kev ua tiav cov tshuaj tiv thaiv ntawm aqueous barium hydroxide thiab nitric acid?
Ba(OH)2 + 2HNO3 → Ba(NO3)2 + 2H2O. Barium hydroxide react nrog nitric acid los tsim barium nitrate thiab dej
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
Dab tsi tuaj yeem siv los txiav txim siab tus nqi ntawm cov tshuaj tiv thaiv enzyme catalyzed?
Enzyme catalysis yog kuaj pom los ntawm kev ntsuas qhov pom ntawm cov khoom lossis ploj ntawm cov reactants. Txhawm rau ntsuas qee yam, koj yuav tsum muaj peev xwm pom nws. Enzyme assay yog cov kev ntsuam xyuas tsim los ntsuas kev ua haujlwm ntawm enzyme los ntawm kev ntsuas qhov kev hloov pauv hauv cov ntsiab lus ntawm cov tshuaj uas pom tau
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