Video: Dab tsi yog ib yam khoom uas yaj los ua ions?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
electrolytes
Tib neeg kuj nug, ua li cas thaum cov khoom tawg?
Kev daws yog tsim thaum ib yam khoom hu ua lub solute " yaj " rau hauv lwm yam khoom hu ua cov kuab tshuaj. Dissolving yog thaum tus solute tawg los ntawm ib tug loj siv lead ua ntawm molecules rau ntau me me los yog ib tug neeg molecules. Lawv ua qhov no los ntawm rub tawm cov ions thiab tom qab ntawd ncig cov ntsev molecules.
Tsis tas li ntawd, cov tshuaj uas yaj hauv dej hu ua dab tsi? Dej yog ib qho hnyav, txhais tau tias nws yog kua uas dissolves tshuaj . Ib qho tshuaj uas yaj yog hu ua lub solute, thiab cov sib tov tsim thaum cov kuab tshuaj thiab solute tag ua ke thiab tsis cais yog hu ua kev daws teeb meem.
Ib yam li ib tug yuav nug, dab tsi ions raug tsim thaum NaOH yaj hauv dej?
Thaum twg sodium hydroxide (NaOH) yaj nyob rau hauv dej, nws cais mus rau hauv zoo - them sodium ions (cations) thiab tsis zoo - them hydroxide ions (anions).
Ib qho piv txwv ntawm ionization yog dab tsi?
Ionization : Hloov Atoms rau hauv Charged Ions Qee piv txwv uas tej zaum koj yuav paub muaj xws li: Thaum sodium thiab chlorine ua ke los ua ntsev, sodium atom muab ib qho hluav taws xob ua rau muaj txiaj ntsig zoo thaum chlorine tau txais cov hluav taws xob thiab ua rau tsis zoo raws li qhov tshwm sim.
Pom zoo:
Dab tsi yog qee yam uas tsis yaj hauv dej?
Qab zib thiab ntsev yog cov piv txwv ntawm cov khoom soluble. Cov khoom uas tsis yaj hauv dej yog hu ua insoluble. Xuab zeb thiab hmoov nplej yog cov piv txwv ntawm cov tshuaj insoluble
Yuav ua li cas koj thiaj paub tias ib yam dab tsi yog ib yam khoom dawb huv los yog sib tov?
1. Cov tshuaj dawb huv tsis tuaj yeem muab cais ua lwm yam teeb meem, thaum sib xyaw yog sib xyaw ntawm ob lossis ntau dua cov khoom ntshiab. 2. Cov khoom ntshiab muaj lub cev tsis tu ncua thiab tshuaj lom neeg, thaum cov khoom sib xyaw muaj qhov sib txawv ntawm lub cev thiab tshuaj lom neeg (piv txwv li, qhov kub thiab txias)
Yam dab tsi ntawm cov dej zoo tshaj plaws piav qhia nws lub peev xwm los yaj ntau yam khoom siv?
Vim tias 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
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Dab tsi yog lub npe rau cov khoom uas yaj hauv dej tab sis tsis tsim ions lossis ua hluav taws xob tam sim no?
Ib qho electrolyte yog ib yam khoom uas tsim cov kua hluav taws xob thaum yaj hauv cov kuab tshuaj polar, xws li dej. Cov yaj electrolyte cais mus rau hauv cations thiab anions, uas disperse uniformly los ntawm cov kuab tshuaj. Hluav taws xob, xws li kev daws teeb meem yog nruab nrab