Video: Dab tsi tuaj yeem hydrogen bond?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A hydrogen daim ntawv cog lus yog lub zog txaus nyiam ntawm cov hydrogen txuas mus rau ib qho electronegative atom ntawm ib lub molecule thiab ib qho electronegative atom ntawm ib tug txawv molecule. Feem ntau cov electronegative atom yog oxygen, nitrogen, los yog fluorine, uas muaj ib feem tsis zoo nqi.
Tsuas yog li ntawd, dab tsi tuaj yeem tsim hydrogen bonds?
Hydrogen Bonding . Hydrogen bonding yog ib hom tshwj xeeb ntawm dipole-dipole attraction ntawm molecules, tsis yog covalent daim ntawv cog lus rau a hydrogen atom. Nws tshwm sim los ntawm lub zog txaus nyiam ntawm a hydrogen atom covalently bonded rau ib tug heev electronegative atom xws li ib tug N, O, los yog F atom thiab lwm heev electronegative atom.
Ib sab saum toj, txhais li cas los ntawm hydrogen bonding? Hydrogen Bond Txhais . A hydrogen daim ntawv cog lus yog ib hom kev ntxim nyiam (dipole-dipole) kev sib cuam tshuam ntawm ib qho electronegative atom thiab a hydrogen atom ua phooj ywg rau lwm electronegative atom. A hydrogen daim ntawv cog lus zoo li yuav muaj zog tshaj van der Waals rog, tab sis tsis muaj zog tshaj covalent daim ntawv cog lus los yog ionic daim ntawv cog lus.
Tom qab, lo lus nug yog, dab tsi yog hydrogen daim ntawv cog lus nrog piv txwv?
hydrogen daim ntawv cog lus . npe. Lub ntsiab txhais ntawm hydrogen daim ntawv cog lus yog tshuaj daim ntawv cog lus nruab nrab ntawm hydrogen atom thiab electronegative atom. Ib piv txwv ntawm hydrogen daim ntawv cog lus yog dej molecules kev sib raug zoo ua ke nyob rau hauv daim ntawv ntawm dej khov.
Nyob rau hauv cov kua yog hydrogen bonding zog tshaj?
Dej
Pom zoo:
Cov ntsiab lus twg tuaj yeem koom nrog hauv hydrogen bonding?
Hydrogen bonding tuaj yeem tshwm sim ntawm hydrogen thiab plaub lwm yam. Oxygen (feem ntau), Fluorine, Nitrogen thiab Carbon. Cov pa roj carbon yog qhov tshwj xeeb uas nws tsuas yog sib cuam tshuam hauv hydrogen bonding thaum nws raug khi rau cov khoom electronegative heev xws li Fluorine thiab Chlorine
Muaj pes tsawg atoms hauv cov duab molecule tuaj yeem tsim hydrogen bonds nrog dej?
Dr. Haxton hais rau nws cov chav kawm tias cov dej molecule tuaj yeem ua 4 hydrogen bonds, tag nrho lawv nyob rau hauv tib lub dav hlau raws li peb lub atoms
Dab tsi yog Qhov Ib Feem Cuam Tshuam ntawm cov khoom hydrogen hauv cov methane ch4 yog dab tsi?
Cov feem pua ntawm cov ntsiab lus los ntawm Element Element Symbol Mass Percent Hydrogen H 25.132% Carbon C 74.868%
Hauv cov molecules lom neeg twg koj tuaj yeem pom hydrogen bonds?
Hydrogen Bond Piv txwv Hydrogen bonding tshwm sim nto moo tshaj plaws ntawm cov dej molecules. Tib neeg DNA yog ib qho piv txwv nthuav ntawm hydrogen daim ntawv cog lus. Hydroflouric thiab formic acids muaj ib hom tshwj xeeb ntawm hydrogen daim ntawv cog lus hu ua symmetric hydrogen bond
Yuav ua li cas koj paub yog hais tias ib tug molecule muaj peev xwm hydrogen bond?
Tom qab ntawd cov hydrogen muaj cov nqi zoo ib nrab. Txhawm rau paub txog qhov muaj peev xwm ntawm hydrogen bonding, tshuaj xyuas Lewis qauv ntawm cov molecule. Lub atom electronegative yuav tsum muaj ib lossis ntau dua cov khoom siv hluav taws xob tsis sib koom xws li cov pa oxygen thiab nitrogen, thiab muaj cov nqi tsis zoo