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.
