Video: Qhov sib faib coefficient ntawm 1 txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv kev tshawb fawb tshuaj thiab kws tshuaj, ob theem feem ntau yog cov kuab tshuaj. Feem ntau, ib ntawm cov kuab tshuaj yog dej, hos qhov thib ob yog hydrophobic, xws li 1 - octanol. Li no lub muab faib coefficient ntsuas seb hydrophilic ("dej-hlub") los yog hydrophobic ("dej-ntshai") cov tshuaj yog tshuaj.
Ib yam li ntawd, nws tau nug, puas yog qhov sib faib siab coefficient zoo dua?
chav ntsuas ntsuas hu ua muab faib coefficient . Qhov ntau dua qhov solubility ntawm ib yam khoom, lub siab dua nws muab faib coefficient , thiab cov siab dua tus muab faib coefficient , cov siab dua lub permeability ntawm daim nyias nyias rau cov khoom tshwj xeeb.
Tsis tas li ntawd, qhov sib faib coefficient ntawm benzoic acid yog dab tsi? Cov muab faib coefficient yog cov kev faib tawm ntawm solute nyob rau hauv ob immiscible kua. Nws yog cov kev ua ntawm solute nkag mus rau hauv cov organic theem lossis aqueous theem uas tau piav qhia los ntawm Muab faib Txoj cai los ntawm kev noj benzoic acid hauv benzene thiab dej, uas tau piav qhia tias benzoic acid muaj nyob rau hauv daim ntawv dimeric03. ?? = √ C org.
Ua li no, logD txhais li cas?
logD yog a log Kev faib tawm ntawm cov tshuaj sib xyaw ntawm lipid thiab aqueous theem. Qhov nrov tshaj plaws lipid theem yog octanol. LogP yog sib npaug rau logD rau cov tsis-ionisable tebchaw thiab sawv cev rau qhov muab faib ntawm daim ntawv nruab nrab rau ionizable tebchaw (thiab, li no, yog virtual, unmeasurable, khoom).
Dab tsi yog units ntawm partition coefficient?
A muab faib coefficient yog qhov piv ntawm cov concentration ntawm cov khoom hauv ib qho nruab nrab lossis theem (C1) mus rau qhov concentration nyob rau theem ob (C2) thaum ob qhov concentrations ntawm equilibrium; uas yog, muab faib coefficient = (C1/C2)sib npaug. Cov units ntawm C1 thiab C2 tej zaum yuav txawv.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
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Qhov cuam tshuam ntawm qhov kub thiab txias ntawm qhov sib faib coefficient yog dab tsi?
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Dab tsi yog qhov sib txawv ntawm qhov sib txawv ntawm cov kab sib txuas thiab ntau qhov sib piv?
6. (2 lub cim) Qhov sib txawv ntawm cov kab sib txuas (kev sib piv) thiab ntau qhov sib piv yog dab tsi? Cov kab sib xyaw ua ke yog npaj sib piv; uas yog, tshwj xeeb txhais tau tias yog ua ke nyob rau hauv ntau txoj kev thiab contrasted nrog rau lwm yam kev sib txuas ntawm txhais tau tias
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no