Video: Calomel ib nrab cell yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Calomel electrode yog ib hom ib nrab ntawm tes nyob rau hauv uas lub electrode yog mercury coated nrog calomel (Hg2Cl2) thiab cov electrolyte yog ib qho kev daws ntawm poov tshuaj chloride thiab saturated calomel . Hauv calomel ib nrab cell tag nrho tshuaj tiv thaiv yog. Hg2Cl2(s) + 2e- → ← 2Hg(l) + 2Cl-
Ntxiv mus, calomel electrode siv rau dab tsi?
Calomel yog siv raws li qhov sib cuam tshuam ntawm cov hlau mercury thiab cov tshuaj chloride hauv ib qho saturated Calomel electrode , yog siv nyob rau hauv electrochemistry los ntsuas pH thiab hluav taws xob muaj peev xwm hauv kev daws teeb meem, Hauv kev ntsuas electrochemical feem ntau, nws yog ib qho tsim nyog yuav tsum khaws ib qho ntawm electrodes nyob rau hauv ib tug electrochemical cell ntawm a
Kuj Paub, dab tsi yog qhov siv ib nrab ntawm tes? A siv ib nrab - cell yog ib qho hluav taws xob uas muaj qhov ruaj khov thiab cov ntaub ntawv zoo electrochemical muaj peev xwm voltage. Ob ib nrab - hlwb yog txuas rau hauv ib qho electrolyte los tsim ib lub galvanic cell los yog roj teeb. Siv ib nrab - hlwb yog li ntawd ua ib qho nruab nrab rau ib qho twg cell muaj peev xwm xam.
Tib neeg kuj nug, calomel electrode ua haujlwm li cas?
Cov saturated Calomel electrode (SCE) yog ib qho kev siv electrode Raws li cov tshuaj tiv thaiv ntawm cov tshuaj mercury thiab mercury (I) chloride. Theem aqueous nyob rau hauv kev sib cuag nrog mercury thiab mercury (I) chloride (Hg2Cl2, " calomel ") yog ib qho kev daws teeb meem ntawm potassium chloride hauv dej.
Tus txheej txheem muaj peev xwm ntawm tus qauv calomel electrode yog dab tsi?
Cov txheem peev xwm rau qhov tshuaj tiv thaiv no yog + 0.268 V. Yog hais tias lub cell yog saturated nrog KCl ntawm 25 ° C, peev xwm yog +0.241 V. A Calomel electrode saturated nrog KCl yog hu ua saturated Calomel electrode , abbreviated S. C. E. (thiab duab rau sab xis).
Pom zoo:
Dab tsi yog thawj theem nrab thiab theem nrab hydrogen?
Primary = hydrogen ntawm ib cov pa roj carbon txuas nrog tsuas yog ib qho ntawm lwm cov carbon. Secondary = ib hydrogen ntawm acarbon txuas rau tsuas yog OB lwm yam carbons. Tertiary = ahydrogen ntawm cov pa roj carbon txuas nrog peb lwm cov pa roj carbon monoxide
Dab tsi yog nyob rau hauv nruab nrab ntawm cov nroj tsuag cell?
Nyob rau hauv ib tug cog Cell Nyob rau hauv nruab nrab ntawm cov nroj tsuag cell nyob rau hauv nws tus kheej daim nyias nyias yog lub nucleus. Lub nucleus zoo li qhov chaw hais kom ua ntawm lub Hoobkas. Txawm hais tias muaj ntau cov ribosomes pom nyob hauv lub cell, muaj ntau yam txuas nrog lub cev hu ua endoplasmic reticulum, lossis ER luv luv
Lub peev xwm ntawm calomel electrode yog dab tsi?
SCE muaj peev xwm Tab sis txij li thaum cov tshuaj sab hauv yog saturated nrog poov tshuaj chloride, qhov kev ua no yog tsau los ntawm solubility ntawm poov tshuaj chloride, uas yog: 342 g / L74.5513 g / mol = 4.587 M @ 20 ° C. Qhov no muab SCE muaj peev xwm ntawm +0.248 V vs
Qhov nruab nrab nruab nrab ntawm lub ntiaj teb yog dab tsi?
Lub teb chaws qhov ntsuas kub yog 2.91 ° C (5.24 ° F) saum toj no 1961-1990 qhov nruab nrab, tawg cov ntaub ntawv yav dhau los tau teev tseg hauv 2013 los ntawm 0.99 ° C (1.78 ° F)
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm