2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ib qho hnyav yog ib qho molecule uas tuaj yeem yaj lwm cov molecules, hu ua solutes. Cov kuab tshuaj tuaj yeem ua kua, kua lossis roj. Cov kuab tshuaj molecules rub sib nrug ntawm cov kuab tshuaj molecules, thiab thaum kawg cov kuab tshuaj molecules ua tus sib npaug faib thoob plaws hauv cov kuab tshuaj. Qhov sib xyaw ua ke no tsis tuaj yeem sib cais ntawm lub cev.
Yuav ua li cas cov kuab tshuaj dissolves solutes?
Ib tshuaj yog tsim thaum ib yam khoom hu ua solute "dissolves" rau lwm yam khoom hu ua hnyav. Dissolving yog thaum lub solute tawg los ntawm ib tug loj siv lead ua ntawm molecules mus rau hauv ntau me me pawg los yog ib tug molecules. Qhov kev sib cais no yog tshwm sim los ntawm tuaj ntsib nrog cov kuab tshuaj.
Dab tsi ua rau cov kuab tshuaj muaj txiaj ntsig?
Ib qho hnyav yog ib yam khoom uas tuaj yeem yaj lwm cov molecules thiab cov tebchaw, uas yog hu ua solutes. … Vim yog nws cov polarity thiab muaj peev xwm tsim cov ntawv cog lus hydrogen, dej ua rau cov kuab tshuaj zoo heev, txhais tau tias nws tuaj yeem yaj ntau hom molecules.
Pob cov kuab tshuaj puas ua cov kuab tshuaj?
Thaum ib yam tshuaj yaj mus rau lwm qhov, kev daws teeb meem raug tsim. Cov tshuaj yog ib homogeneous sib tov uas muaj ib tug solute yaj nyob rau hauv ib tug hnyav. Tus solute yog cov khoom uas tau yaj, hos cov kuab tshuaj yog tus dissolving nruab nrab.
Yuav ua li cas cov kuab tshuaj tsis polar dissolves?
Nonpolar compounds ua tsis yaj hauv dej. Lub zog txaus nyiamuas ua hauj lwm ntawm cov hais nyob rau hauv ib tug nonpolar compound yog tsis muaj zog dispersion rog. Txawm li cas los xij, cov molecules nonpolar tau nyiam rau lawv tus kheej ntau dua li lawv mus rau cov dej polar molecules.
Pom zoo:
Cov piv txwv ntawm cov kuab tshuaj thiab cov kuab tshuaj yog dab tsi?
Solutes yog cov khoom uas yaj rau hauv cov kuab tshuaj thiab peb xaus nrog kev daws. Qee qhov piv txwv ntawm cov kuab tshuaj yog dej, ethanol, toluene, chloroform, acetone, mis nyuj, thiab lwm yam. Piv txwv ntawm cov kuab tshuaj muaj xws li, qab zib, ntsev, oxygen, thiab lwm yam … Cov dej dej muaj dej (kua kua) thiab yaj oxygen (solute).
Puas muaj cov kuab tshuaj ntau dua li cov kuab tshuaj?
Ib tshuaj yog ib homogeneous sib tov ntawm ob los yog ntau tshaj tshuaj. Cov khoom uas muaj nyob rau hauv qhov loj tshaj plaws yog hu ua cov kuab tshuaj thiab ib qho tam sim no nyob rau hauv lub me me yog hu ua ib tug solute. Tsuas muaj ib qho kuab tshuaj xwb, tab sis muaj peev xwm ua tau ntau yam.
Yuav ua li cas cov kuab tshuaj reabsorbed los ntawm lub voj nephron?
Cov tshuaj reabsorbed hauv PCT suav nrog urea, dej, potassium, sodium, chloride, qabzib, amino acids, lactate, phosphate, thiab bicarbonate. Txij li cov dej kuj tseem rov nqus cov kua hauv lub voj voog ntawm Henle tsawg dua li PCT, kwv yees li ib feem peb ntawm cov khoom qub.
Vim li cas cov kuab tshuaj deuterated siv hauv nmr?
Nyiaj deuterated cov kuab tshuaj tau ib txwm siv rau NMR spectroscopy nyob rau hauv kev txiav txim txhawm rau txhawm rau txhawm rau thiab shimming, ntxiv rau txhawm rau txhawm rau cov teeb meem loj hnyav uas yuav txwv tsis pub tshwm sim hauv proton NMR spectrum.
Cov kuab tshuaj puas tshem tawm cov stains?
Kev tshem tawm kab yog txheej txheem ntawm kev tshem tawm cov cim lossis qhov chaw sab laug los ntawm ib qho khoom ntawm ib qho chaw xws li ntaub. A solvent lossis detergent feem ntau yog siv los tshem tawm cov stain thiab ntau yam no muaj nyob hauv lub txee.
