Video: Kev daws teeb meem txhais li cas hauv zaj dab neeg?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hauv Steadfast dab neeg , cov Tshuaj Elementrepresent qhov xwm ntawm tej yam uas yuav daws qhov teeb meem Dab neeg Teeb meem. Dua nws yog "flip sab" ntawm qhov teeb meem, tab sis nws muaj tshwj xeeb rau ua nrog Zuag qhia tag nrho Dab neeg txij thaum Lub Cim Tseem Ceeb ua tsis, hauv cov xwm txheej no, qhia qhov teeb meem zoo ib yam li Zuag qhia tag nrho Dab neeg.
Ua raws li qhov no, kev daws teeb meem txhais li cas?
Hloov Kho Lub Tsib Hlis 08, 2019. A. daws yog ib homogeneousmixture ntawm ob los yog ntau yam tshuaj. A daws tej zaum yuav muaj nyob hauv ib theem twg. A daws muaj cov kuab tshuaj thiab cov kuab tshuaj yog cov khoom uas yog yaj nyob rau hauv lub thesolvent.
Dab tsi yog lub ntsiab lus ntawm qhov teeb meem hauv ib zaj dab neeg? A teeb meem hauv ib zaj dab neeg yog kev tsis sib haum xeeb uas cuam tshuam rau cov cim lossis ua rau muaj kev puas tsuaj loj tab sis feem ntau yog daws ntawm qhov kawg.
Cov lus nug tseem yog, qhov kev daws teeb meem txhais tau li cas?
1. Teb (s) tawm tswv yim lossis siv los sim thiab daws cov lus nug lossis teeb meem. A daws tuaj yeem yog qhov yooj yim lossis nyuaj thiab yuav xav tau ob peb peev txheej lossis ntau yam peev txheej. Daws teeb meem feem ntau ua ke ntawm ob cov kua dej tab sis tuaj yeem ua ke ntawm cov kua nrog lwm cov khoom xws li qab zib piv txwv.
Ib qho piv txwv ntawm kev daws teeb meem yog dab tsi?
Ib txhia piv txwv ntawm kev daws teeb meem yog dej ntsev, dej cawv, thiab qab zib yaj hauv dej. Hauv peb piv txwv ntawm dej ntsev, qhov kev daws yog ntsev. Solvent: qhov no yog cov khoom uas ua rau feem ntau ntawm cov daws . Ntawm no yog ib feem uas lub solute yaj. Hauv peb piv txwv ntawm dej ntsev, qhov hnyav yog dej.
Pom zoo:
Puas tuaj yeem daws qhov kev daws teeb meem?
Nrog rau lwm cov zis tso zis, koj yuav tsum txhawj xeeb txog microwaving nws thiab ua kom nws nyob ze rau koj lub cev kom tsis txhob poob cua sov. Sub Kev daws teeb meem, txawm li cas los xij, muaj daim ntawv tso cai ua kom sov - lub vial me me ntawm lithium chloride (LiCl) uas tsis tuaj yeem kuaj pom los ntawm kev tshuaj yeeb tshuaj. Cov cua kub ntau dhau tuaj yeem tsim nyog pov tseg
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