Video: Vim li cas Mollality nyiam dua molarity hauv kev nthuav qhia qhov concentration ntawm cov tshuaj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Molarity yog tus naj npawb ntawm moles ib chav tsev ntim ntawm qhov daws thiab molality yog tus naj npawb ntawm moles ib chav tsev loj ntawm cov kuab tshuaj. Volume yog qhov kub thiab txias nyob qhov twg raws li huab hwm coj yog tas li ntawm txhua qhov kub. Yog li ntawd, molality tseem nyob tas li tab sis molarity hloov nrog kub. Yog li ntawd, molality yog nyiam dua molarity.
Hais txog qhov no, dab tsi yog qhov txiaj ntsig tseem ceeb ntawm Mollality tshaj molarity raws li chav nyob ntawm concentration?
Ob leeg yog siv los xam tus naj npawb ntawm moles ntawm solute. Tab sis los ntawm kev siv molality lub sij hawm peb tuaj yeem xam cov moles ntawm cov kuab tshuaj hauv cov kuab tshuaj, yog li nws muab cov qhov zoo ntawm kev paub tus naj npawb ntawm moles ntawm solute hauv hnyav thaum nyob rau hauv molarity Peb tsuas tuaj yeem suav tus lej ntawm cov moles ntawm cov kua hauv cov kua (ib litre).
Tsis tas li ntawd, qhov twg yog qhov zoo dua molarity lossis molality? Mollality raug txiav txim siab zoo dua rau kev nthuav qhia cov concentration piv rau molarity vim cov molarity hloov nrog qhov kub thiab txias vim qhov nthuav dav lossis kev cog lus ntawm cov kua nrog qhov kub thiab txias.
Tsis tas li ntawd, yog vim li cas molality thiab tsis molarity siv nyob rau hauv qhov kev qhia ntawm qhov chaw khov kho kev nyuaj siab?
Colligative zog yog lub cev ntawm kev daws teeb meem, zoo li boiling taw tes elevation thiab freezing point kev nyuaj siab . Qhov no yog vim li cas peb siv molality (moles solute ib kg ntawm hnyav) txij li thaum kg ntawm hnyav tsis hloov nrog kub.
Vim li cas peb thiaj siv Mollality?
Concentrations qhia nyob rau hauv molality yog siv thaum kawm cov khoom ntawm kev daws teeb meem ntsig txog vapor siab thiab kub hloov pauv. Mollality yog siv vim nws tus nqi tsis hloov nrog kev hloov pauv ntawm qhov kub thiab txias. Qhov ntim ntawm kev daws, ntawm qhov tod tes, yog me ntsis nyob ntawm qhov kub thiab txias.
Pom zoo:
Dab tsi yog qhov kev sib raug zoo ntawm kev ua lej ntawm qhov kev nyuaj siab khov kho thiab Mollality?
Kev nyuaj siab qhov chaw khov kho yog cov cuab yeej sib koom ua ke pom hauv cov kev daws teeb meem uas tshwm sim los ntawm kev qhia txog cov kuab tshuaj molecules rau cov kuab tshuaj. Cov ntsiab lus khov ntawm cov kev daws yog tag nrho qis dua li cov kuab tshuaj ntshiab thiab yog ncaj qha proportional rau molality ntawm cov kuab tshuaj
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Yog vim li cas sodium poov tshuaj twj tso kua mis suav hais tias yog ib qho kev thauj mus los uas cov kev taw qhia yog cov sodium thiab poov tshuaj tau pumped?
Sodium-Potassium Pump. Kev thauj mus los yog lub zog xav tau cov txheej txheem ntawm kev siv cov molecules thiab ions hla daim nyias nyias 'nce toj' - tiv thaiv kev sib tw gradient. Txhawm rau txav cov molecules tawm tsam lawv cov concentration gradient, yuav tsum muaj cov khoom siv protein
Qhov twg tuaj yeem siv los qhia txog qhov concentration ntawm cov tshuaj?
Molarity (M) qhia cov naj npawb ntawm moles ntawm cov kuab tshuaj ib liter ntawm kev daws (moles / Liter) thiab yog ib qho ntawm feem ntau units siv los ntsuas qhov concentration ntawm cov tshuaj. Molarity yuav siv tau los xam qhov ntim ntawm cov kuab tshuaj los yog tus nqi ntawm cov kuab tshuaj
Cov tshuaj dab tsi tuaj yeem txav mus rau hauv lossis tawm ntawm cov hlwb los ntawm kev nthuav tawm?
Dej, carbon dioxide, thiab oxygen yog ib qho ntawm ob peb yam yooj yim molecules uas muaj peev xwm hla lub cell membrane los ntawm diffusion (los yog ib hom diffusion hu ua osmosis). Diffusion yog ib txoj hauv kev ntawm kev txav ntawm cov khoom nyob rau hauv cov hlwb, nrog rau txoj kev rau cov me me molecules tseem ceeb hla lub cell membrane