Cov txheej txheem:
Video: Yuav ua li cas koj cais ib tug sib tov ntawm xuab zeb thiab ntsev?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Sib cais ntsev thiab xuab zeb siv solubility
- Ncuav lub ntsev thiab xuab zeb sib tov rau hauv lub lauj kaub.
- Ntxiv dej.
- Cua sov dej kom txog thaum lub ntsev yaj.
- Tshem lub lauj kaub los ntawm tshav kub thiab cia nws txias kom txog thaum nws muaj kev nyab xeeb.
- Ncuav lub ntsev dej v a cais thawv.
- Tam sim no sau cov xuab zeb .
Ua kom pom qhov no, vim li cas xuab zeb thiab ntsev tuaj yeem sib cais siv qhov kev sim no?
Teb thiab piav qhia: Txij li thaum xuab zeb tsis yog dej-soluble, yog hais tias tus xuab zeb thiab ntsev sib tov yog tov nrog dej, ua ntsev yuav yaj thiab cov xuab zeb yuav tsis.
Ib yam li ntawd, koj yuav cais hlau xuab zeb thiab ntsev li cas? Muab cov hlau nplaum qhwv hauv cov hnab yas noj su thiab txav mus los ntawm qhov sib tov ntawm peb cov khib nyiab. Cov hlau cov ntaub ntawv yuav lo rau cov hlau nplaum. Cov ntaub ntawv tuaj yeem raug tshem tawm los ntawm unwrapping cov yas los ntawm cov hlau nplaum kom zoo! Sib tov qhov seem ntsev thiab xuab zeb hauv dej thiab do.
Tsis tas li ntawd, koj yuav ua li cas cais cov xuab zeb thiab qab zib?
Rau cais qab zib los ntawm nws sib tov nrog xuab zeb , ib tug proportionally loj npaum li cas ntawm cov dej yog ntxiv rau lub sib tov thiab shaken vigorously tso cai rau cov qab zib yaj. Khoom-kua sib tov yog lim siv cov khoom ntxeem tau khaws cia xuab zeb ntawm lub lim thiab tso cai rau cov kua dej hla dhau.
Hom kev sib tov yog ntsev thiab xuab zeb?
Ntsev dej tov yog homogeneous sib tov, piv txwv li, tab sis ntsev tov nrog xuab zeb yog ib tug heterogeneous sib tov. Cov khoom sib xyaw yog cais rau hauv lawv cov ntsiab lus lossis cov khoom sib txuas (tsawg kawg theoretically) los ntawm cov txheej txheem ntawm lub cev.
Pom zoo:
Dab tsi yog txoj hauv kev zoo dua los cais cov xuab zeb thiab dej thiab vim li cas?
Nws yog ib qho yooj yim los cais cov xuab zeb thiab dej byfiltering sib tov. Ntsev tuaj yeem sib cais los ntawm kev daws teeb meem los ntawm evaporation. Cov dej kuj tseem tuaj yeem rov qab tau zoo li cov ntsev yog tias cov dej vapor raug kaw thiab txias kom cov dej vapor rov qab rau hauv cov kua. Cov txheej txheem no hu ua distillation
Yuav ua li cas tshem tawm ntsev los ntawm hiav txwv xuab zeb?
Xuab zeb (feem ntau silicon dioxide) tsis yog. Ncuav ntsev thiab xuab zeb sib tov rau hauv lub lauj kaub. Ntxiv dej. Kub dej kom txog thaum ntsev yaj. Tshem lub lauj kaub los ntawm tshav kub thiab cia nws txias kom txog thaum nws tsis muaj kev nyab xeeb. Ncuav dej ntsev rau hauv ib lub thawv cais. Tam sim no sau cov xuab zeb. Ncuav dej ntsev rov qab rau hauv lub lauj kaub khoob
Yuav ua li cas koj cais ib tug sib tov ntawm pigments los ntawm ib tug number case cartridge?
Txhawm rau cais qhov sib xyaw ntawm cov xim uas yog ob lub dyes, daim ntawv chromatography yog siv. Ib feem me me ntawm qhov sib tov yog muab tso rau hauv cov khoom siv absorbent, ib daim ntawv lim, nrog cov kuab tshuaj. Ob lub dyes yuav txav mus rau nyias thiab tus number case yuav sib cais rau hauv nws cov khoom ntshiab
Yuav ua li cas koj xam pH ntawm ib tug ntsev tov?
Xam pH ntawm ntsev tov loj NaF = 20.0 g. molar mass NaF = 41.99 g/mol. Luas = 0.500 L. of F – = 1.4 × 10 −11
Koj yuav cais hlau thiab xuab zeb li cas?
Muab cov hlau nplaum qhwv hauv cov hnab yas noj su thiab txav mus los ntawm qhov sib tov ntawm peb cov khib nyiab. Cov ntaub ntawv hlau yuav lo rau cov hlau nplaum. Cov ntaub ntawv tuaj yeem raug tshem tawm los ntawm unwrapping cov yas los ntawm cov hlau nplaum kom zoo! Sib tov cov ntsev thiab xuab zeb ntxiv rau hauv dej thiab do