Qhov sib txawv tseem ceeb ntawm benzene thiab benzoate yog tias benzene yog ib lub nplhaib qauv uas tsis muaj kev hloov pauv ntawm nws, whereas benzoate yog lub hauv paus conjugate ntawm benzoic acid thiab muaj lub nplhaib benzene nrog ib qho proton hloov los ntawm pawg neeg ua haujlwm tsis zoo..
Benzene yog cov organic compound uas muaj cov tshuaj formula C6H6 Cov organic compound no muaj 6-tus tswv cuab lub nplhaib, thiab tag nrho. cov tswv cuab yog carbon atoms. Benzoate yog cov tswv cuab yooj yim tshaj plaws hauv chav kawm ntawm benzoates uas tuaj yeem pom raws li lub hauv paus conjugate ntawm benzoic acid.
Benzene yog dab tsi?
Benzene yog cov organic compound uas muaj cov tshuaj formula C6H6. Cov organic compound no muaj 6-tus tswv cuab lub nplhaib, thiab txhua tus tswv cuab yog carbon atoms. Hauv cov qauv no, txhua qhov ntawm cov pa roj carbon atom txuas nrog hydrogen atom. Txij li cov compound no tsuas muaj carbon thiab hydrogen atoms, nws yog hydrocarbon. Qhov tseem ceeb tshaj, qhov sib xyaw ua ke no tshwm sim raws li cov khoom siv roj av.
Cov molar loj ntawm benzene yog 78.11 g / mol. Nws melting point thiab boiling point yog 5.53 ° C thiab 80.1 ° C, feem. Benzene yog cov kua tsis muaj xim nyob rau hauv chav tsev kub. Tsis tas li ntawd, nws yog ib qho aromatic hydrocarbon. Raws li qhov tshwm sim, nws muaj qhov tsw ntxhiab tsw. Ntxiv mus, raws li kev txiav txim siab X-ray diffraction, tag nrho cov kev sib cog lus ntawm 6 carbon atoms muaj qhov ntev zoo sib xws. Yog li ntawd, nws muaj cov qauv nruab nrab. Peb hu nws ua "hybrid qauv" vim hais tias, raws li daim ntawv cog lus tsim, yuav tsum muaj kev sib hloov ib daim ntawv cog lus thiab ob daim ntawv cog lus ntawm cov pa roj carbon atoms. Tom qab ntawd, qhov tseeb benzene qauv yog tshwm sim los ntawm ob peb resonance qauv ntawm benzene molecule.
Benzoate yog dab tsi?
Benzoate yog cov tswv cuab yooj yim tshaj plaws ntawm cov chav kawm ntawm benzoates uas tuaj yeem pom raws li lub hauv paus conjugate ntawm benzoic acid. Nws muaj ib tug benzoic acid core nrog ib tug proton uas ploj lawm, muab tus nqi -1. Hauv lwm lo lus, nws yog lub hauv paus conjugate ntawm benzoic acid. Feem ntau hom benzoate yog sodium benzoate.
Sodium benzoate yog sodium ntsev ntawm benzoic acid, muaj cov tshuaj formula C6H5COONa. Peb tuaj yeem tsim nws los ntawm kev ua haujlwm nruab nrab ntawm benzoic acid. Txoj kev tsim khoom no suav nrog cov tshuaj tiv thaiv ntawm sodium hydroxide thiab benzoic acid. Tab sis kev lag luam, peb kuj tuaj yeem tsim nws los ntawm ib nrab oxidation ntawm toluene nyob rau hauv lub xub ntiag ntawm oxygen. Feem ntau, sodium benzoate muaj nyob rau hauv ntau yam khoom noj nrog rau benzoic acid. Qee qhov chaw nplua nuj muaj xws li zaub thiab txiv hmab txiv ntoo. Daim ntawv thov tseem ceeb ntawm qhov sib xyaw no yog nws siv ua zaub mov preservative.
Qhov txawv ntawm Benzene thiab Benzoate yog dab tsi?
Benzene thiab benzoate yog ob yam tshuaj lom neeg sib txuas. Qhov sib txawv tseem ceeb ntawm benzene thiab benzoate yog tias benzene yog ib lub nplhaib qauv uas tsis muaj kev hloov pauv ntawm nws, whereas benzoate yog lub hauv paus conjugate ntawm benzoic acid thiab muaj lub nplhaib benzene nrog ib qho proton hloov los ntawm ib pawg neeg ua haujlwm tsis zoo.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm benzene thiab benzoate hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Benzene vs Benzoate
Benzene yog cov organic compound uas muaj cov tshuaj formula C6H6. Cov organic compound no muaj 6-tus tswv cuab lub nplhaib, thiab txhua tus tswv cuab yog carbon atoms. Benzoate yog cov tswv cuab yooj yim tshaj plaws hauv chav kawm ntawm benzoates uas tuaj yeem pom raws li lub hauv paus conjugate ntawm benzoic acid. Qhov sib txawv tseem ceeb ntawm benzene thiab benzoate yog tias benzene yog ib lub nplhaib qauv uas tsis muaj kev hloov pauv ntawm nws, whereas benzoate yog lub hauv paus conjugate ntawm benzoic acid thiab muaj lub nplhaib benzene nrog ib qho proton hloov los ntawm ib pawg neeg ua haujlwm tsis zoo.
