Video: Yuav ua li cas dej ua raws li cov kuab tshuaj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dej muaj peev xwm ntawm dissolving ntau yam khoom sib txawv, uas yog vim li cas nws yog xws li ib tug zoo kuab tshuaj . Thiab, dej yog hu ua "universal kuab tshuaj "vim nws dissolves ntau tshaj li lwm yam kua. Qhov no tso cai rau cov dej molecule los ua attracted rau ntau lwm yam sib txawv ntawm molecules.
Tsuas yog li ntawd, vim li cas dej thiaj tseem ceeb ua cov kuab tshuaj?
Dej hu ua "universal kuab tshuaj "vim nws muaj peev xwm ntawm dissolving ntau tshaj li lwm yam kua. Qhov no yog tseem ceeb rau txhua yam muaj sia nyob hauv ntiaj teb. Nws txhais tau tias nyob qhov twg dej mus, los ntawm huab cua, hauv av, lossis los ntawm peb lub cev, nws yuav siv cov tshuaj muaj txiaj ntsig, minerals, thiab cov as-ham.
Ib yam li ntawd, yog vim li cas dej thiaj li ua rau lub cev hnyav? Dej ua a polar kuab tshuaj vim hais tias nws tuaj yeem cuam tshuam rau qhov zoo lossis qhov tsis zoo ntawm cov hluav taws xob hluav taws xob ntawm tus solute. Qhov tsis zoo me ntsis nyob ze ntawm cov pa atom nyiam cov hydrogen atoms nyob ze ntawm dej los yog qhov zoo-charged cheeb tsam ntawm lwm cov molecules.
Raws li txoj cai, cov khoom hnyav ntawm cov dej yog dab tsi?
Dej Cov Khoom Uas Muaj Zog . Dej , uas tsis tsuas yog dissolves ntau lub tebchaw tab sis kuj dissolves ntau tshaj li lwm yam kua, suav hais tias yog lub universal. kuab tshuaj . Lub polar molecule nrog ib nrab-zoo thiab tsis zoo nqi, nws yooj yim dissolves ions thiab polar molecules.
Cov dej yaj li cas?
Dej yaj ntau lwm ionic compounds nyob rau hauv tib txoj kev uas nws yaj NaCl. Yog li ntawd, lub dej molecules tsis tuaj yeem rub cov ions sib nrug. Dej THIAB POLAR MOLECULAR COMPOUNDS. Ib feem zoo hydrogen atoms hauv a dej molecule yog attracted rau ib feem tsis zoo oxygen atoms ntawm lwm yam dej molecules.
Pom zoo:
Yuav ua li cas koj xam tus nqi ntawm cov kuab tshuaj kom yaj?
Solubility qhia qhov siab tshaj plaws ntawm cov khoom uas tuaj yeem yaj hauv cov kuab tshuaj ntawm qhov kub thiab txias. Xws li kev daws yog hu ua saturated. Faib qhov loj ntawm qhov sib xyaw los ntawm qhov hnyav ntawm qhov hnyav thiab muab 100 g los xam cov solubility hauv g / 100g
Cov polarity cuam tshuam li cas dej lub luag haujlwm ua cov kuab tshuaj?
Dej Cov Khoom Uas Muaj Zog. Dej, uas tsis yog tsuas yog dissolves ntau lub tebchaw tab sis kuj dissolves ntau tshaj li lwm yam kua, suav hais tias yog lub universal hnyav. Polar molecule nrog ib nrab-zoo thiab tsis zoo nqi, nws yooj yim dissolves ions thiab polar molecules
Yuav ua li cas cov kuab tshuaj volatile nyob rau hauv lub laboratory?
Flammable solvents yog khaws cia rau hauv lub txee uas tiv taus cov nplaim taws, deb ntawm lwm yam tshuaj. Cov tshuaj no yuav tsum tau ua tib zoo saib xyuas thiab ib txwm nrog cov hnab looj tes tsim nyog, tiv thaiv qhov muag, thiab lub tsho tiv thaiv lub cev los tiv thaiv lub cev. Rau cov tshuaj txaus ntshai dua, cov kws tshawb fawb siv cov hnab looj tes tuab dua lossis cov txheej tiv thaiv ntxiv
Vim li cas cov qauv ntawm cov dej ua rau nws muaj cov kuab tshuaj zoo?
Dej muaj peev xwm yaj ntau yam khoom sib txawv, uas yog vim li cas nws yog ib qho hnyav hnyav. Cov dej molecules muaj lub ntsiab lus ntawm cov pa oxygen thiab hydrogen atoms - ib sab (hydrogen) muaj qhov zoo hluav taws xob thiab lwm sab (oxygen) muaj qhov tsis zoo
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom