Video: Dab tsi yog acidic ethanol ntau dua los yog phenol?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv phenol , rub lub pz electrons los ntawm oxygen atom rau hauv lub nplhaib ua rau hydrogen atom ua ntau ib feem zoo tshaj nws yog nyob rau hauv aliphatic cawv. Qhov no txhais tau tias nws yog ntau heev ntau yooj yim ploj ntawm phenol tshaj nws yog los ntawm aliphatic cawv, yog li ntawd phenol muaj zog dua acidic khoom dua ethanol.
Raws li, leej twg yog acidic cawv ntau dua los yog phenol thiab yog vim li cas?
Phenol yog ntau acidic vim tias thaum nws poob ib H + ion nws tsim phenoxide ion uas ruaj khov (resonance stabalised). Tab sis cawv tsis muab H + ions yooj yim los tsim alkoxide ion uas tsis ruaj khov thiab nkag tau H + ion thiab daim ntawv. cawv dua.
Tom qab, lo lus nug yog, yog phenol tsawg acidic dua ethanol? Phenols muaj ntau acidic ntau dua cawv vim hais tias tus nqi tsis zoo nyob rau hauv phenoxide ion tsis nyob rau hauv cov pa atom raws li nws yog nyob rau hauv ib tug alkoxide ion tab sis yog delocalized raws li nws yog sib koom los ntawm ib tug xov tooj ntawm carbon atoms nyob rau hauv benzene nplhaib.
Ib yam li ntawd, koj tuaj yeem nug, uas yog acidic ethanol ntau dua lossis dej?
Ethoxide ion yog lub hauv paus muaj zog dua li hydroxide ion. Yog li ethanol yog ib tug tsis muaj zog kua qaub tshaj dej . Nws muaj tseeb rau txhua yam cawv tshwj tsis yog methanol, uas yog me ntsis ntau acidic tshaj dej . Sib piv methoxide thiab hydroxide ions, O yog txuas rau CH3 pawg hauv ib qho thiab H hauv lwm qhov.
Dab tsi yog acidic phenol ntau dua los yog carboxylic acid?
Carboxylic acid yog ntau acidic tshaj phenols vim hais tias tus nqi tsis zoo hauv carboxylate anion yog ntau kis tawm raws li piv rau phenoxide ion vim muaj ob lub electronegative O-atoms hauv carboxylate anion piv rau ib qho hauv phenoxide ion.
Pom zoo:
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Puas yog phenol tsawg acidic dua ethanol?
Phenol yog acidic ntau dua li ethanol vim tias phenoxide ion ruaj khov dua ethoxide ion vim resonance
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Dab tsi yog acidic phenol ntau dua ether?
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