Acetic acid yog ib qho polar molecule tsis tuaj yeem yaj hauv cov kuab tshuaj tsis muaj polar benzene. Yog li, cov acetic acid molecules undergo intramolecular hydrogen bonding vim qhov sib txawv electronegativity ntawm hydrogen thiab oxygen. Qhov no ua rau tsim cov acetic acid dimer molecules.
Vim li cas acetic acid muaj nyob hauv daim ntawv dimer piav qhia nrog kev pab ntawm cov qauv?
Carboxylic acids tsim dimers by hydrogen bonding ntawm acidic hydrogen thiab carbonyl oxygen thaum anhydrous. Piv txwv li, acetic acid tsim ib tug dimer nyob rau hauv lub roj theem, qhov twg cov monomer units tau tuav ua ke los ntawm hydrogen bonds. Nyob rau hauv cov xwm txheej tshwj xeeb, feem ntau OH-muaj cov molecules tsim dimers, piv txwv li. dej dimer.
Vim li cas acetic acid nyob hauv dimer?
Qhov tsis zoo polarized oxygen atom ntawm pawg carbonyl tuaj yeem tsim cov ntawv cog lus hydrogen nrog qhov zoo polarized hydrogen atom ntawm cov pa - hydrogen daim ntawv cog lus ntawm ob carboxylic acid molecule. … Yog li, acetic acid kuj tshwm sim raws li ib tug cyclic dimer nyob rau hauv uas ob ntawm nws cov molecules yog tuav los ntawm ob lub zog hydrogen bonds.
Vim li cas benzoic acid nyob li dimer hauv benzene?
Nyob rau hauv benzene molecules, ob lub molecules ntawm benzoic acid associate los ua ib tug dimer. Qhov no dimerization yog ua tau vim yog kev tsim ntawm cov ntawv cog lus hydrogen intermolecular. Li no, qhov kev xaiv B) yog qhov kev xaiv raug.
Dimeric form yog dab tsi?
Dimer: Ib tus qauv uas muaj ob qho tib si lossis zoo sib xwsunits. Cov koog no yuav raug cuam tshuam los ntawm covalent bonding lossis los ntawm cov tsis muaj zog. … Qhov no yog vim acetic acid tsim hydrogen-bonded dimers nyob rau hauv uas cov polar covalent bonds ntawm ob acetic acid molecules yog tawm tsam.
