Cov txheej txheem:
- Vim li cas meta hydroxy benzoic acid ntau acidic?
- Vim li cas M hydroxy benzoic acid muaj zog dua p-hydroxy benzoic acid?
- Vim li cas ob lub hydroxy benzene carboxylic acid yog acidic dua benzene carboxylic acid?
- Vim li cas para hydroxy benzoic acid tsawg acidic dua benzoic acid?
Video: Vim li cas hydroxy benzene yog acidic?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2023-12-16 01:49
Phenol yog hydroxybenzene, uas muaj cov proton ntawm hydroxyl (OH) pawg. … Vim hais tias ntawm lub electron delocalization, lub anion (conjugate puag conjugate puag A conjugate acid muaj ib H atom ntxiv thiab ib qho ntxiv + nqi tshaj lub hauv paus uas tsim nwsLub hauv paus conjugate muaj ib H tsawg dua Atom thiab ib qho ntxiv - nqi tshaj cov kua qaub uas tsim nws. … Nws muaj ib qho tsawg H atom thiab ib qho ntxiv - nqi. conjugate-bases
Conjugate Acids thiab Conjugate Bases - Chemistry | Socratic
) yog stabilized (xws li aliphatic cawv), thiab yog li cov phenol molecule nws tus kheej yog acidic ntau dua li aliphaticcawv.
Vim li cas meta hydroxy benzoic acid ntau acidic?
OH pab pawg yog ob leeg -I thiab +R pab pawg yuav ua raws li - Kuv pab pawg hauv meta thiab yuav rho tawm electron yog li txo cov electron ntom ntawm COO- thiab yog li nws cov acidity yuav ntau tshaj benzoic acid uas tsis muaj electron rho tawm. Yog li meta-hydroxy benzoic acid yog acidic ntau dua li benzoic acid.
Vim li cas M hydroxy benzoic acid muaj zog dua p-hydroxy benzoic acid?
Thaum -OH pawg txuas nrog rau txoj haujlwm para, nws muaj lub siab nyiam delocalize nws cov electrons ntawm lub nplhaib uas muaj ntxhiab (piv txwv li, benzene). Yog li cov electron ceev ntawm oxygen atoms ntawm pawg carboxylic nce thiab polarity ntawm O thiab H txo qis ua rau acidity tsawg.
Vim li cas ob lub hydroxy benzene carboxylic acid yog acidic dua benzene carboxylic acid?
yog li los teb koj cov lus nug, ortho hydroxy benzoic acid yog acidic ntau vim nyob rau hauv ortho isomer, muaj zog hydrogen choj yuav tsim ntawm phenolic -OH- thiab carboxylate ionthiab qhov no yuav zoo li stabilize lub conjugate crboxylate puag li no nce acidity.
Vim li cas para hydroxy benzoic acid tsawg acidic dua benzoic acid?
Cov nyhuv resonance muaj zog dua piv rau cov nyhuv inductive, muaj qhov nce hauv electron densifty ntawm o-thiab p- txoj haujlwm, p-hydroxy benzoic acid yog, yog li ntawd, tsawg dua acidic tshaj benzoic acid.
(A) p-Hydroxy benzoic acid has a lower boiling point than o-hydroxy benzoic acid. (R) a-Hydroxy
Pom zoo:
Vim li cas cov hlau oxides tsis yog acidic?
Thaum tsis yog xim hlau oxides sib xyaw nrog dej, nws tsim cov oxyacid ions uas yog electronegative thiab nkag tau yooj yim dissociates muab hydrogen ions, yog li acidic xwm . Vim li cas cov hlau tsis yog hu ua acidic oxides? Metallic oxide yog qhov tseem ceeb hauv cov xwm txheej vim tias thaum nws yaj hauv dej ces nws yog lub hauv paus.
Vim li cas 1-butyne acidic dua 2-butyne?
Thiab hauv 2-butyne, ob qho tib si carbons koom nrog triple bonding tsis muaj hydrogen atom, thiab terminal carbon atoms yog 'sp3' hybridised, lub ntsiab lus tsawg 's' tus cwj pwm hauv lawv, yog li kev nyiam pub H+ ion yuav tsawg Li no, 1-butyne yog acidic dua 2-butyne .
Vim li cas chloroacetic acid ntau acidic?
Nqe lus nug: Vim li cas chloroacetic acid yog acidic ntau dua li acetic acid? Teb: Chloroacetic acid muaj zog dua, vim nws muaj (ntau electronegative) chlorine atoms nyob rau hauv qhov chaw ntawm (tsawg electronegative) hydrogen atoms . Vim li cas chloroacetic acid yog acidic dua acetic acid?
Yuav sau li cas vim li cas thiab yog vim li cas?
Kev txhais ntawm yog vim li cas thiab (tus) yog li ntawd: yog vim li cas rau ib yam Nws piav qhia vim li cas thiab yog li ntawd ntawm tus nqi nce . Yuav ua li cas thiab yog vim li cas? Txhua qhov laj thawj thiab qhov laj thawj, ib yam li hauv Nws tau mus rau qhov laj thawj thiab yog li ntawm lub koom haum kev saws me nyuam txoj cai thiab cov txheej txheem.
Vim li cas acetylene acidic dua ethylene?
Tus cwj pwm ntawm sp-hybridised carbon atom ntawm acetylene ntau dua li ntawm sp2-hybridised carbon atom ntawm ethylene. … Yog li electronegativity ntawm carbon atom ntawm acetylene (CH≡CH) ntau duadua li cov pa roj carbon atom ntawm ethylene (CH2=CH2) .
