Lub peev xwm ntawm calomel electrode yog dab tsi?
Lub peev xwm ntawm calomel electrode yog dab tsi?

Video: Lub peev xwm ntawm calomel electrode yog dab tsi?

Video: Lub peev xwm ntawm calomel electrode yog dab tsi?
Video: UA KAWG PEEV XWM -May maylee [official] New Song/MV/VDO 2024, Kaum ib hlis
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SCE 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 ib peev xwm ntawm + 0.248 V vs.

Tib neeg kuj nug, tus qauv 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).

Tsis tas li ntawd, vim li cas KCl siv hauv calomel electrode? KCl cov tshuaj yog zoo li lub reservoir ntawm chloride ions.. thaum lub electrode ua raws li anode, mercury reacts nrog cov ions thiab tsim mercurous chloride whereas thaum nws ua raws li ib tug cathode, mercurous chloride txo mus rau mercury thiab chloride ions raug xa mus rau lub cathode. KCl txheej..

Dhau li ntawm no, vim li cas thiaj muaj peev xwm ntawm calomel electrode tas li?

Qhov txo qis tshwm sim tshwm sim ntawm Calomel electrode sib raug rau qhov txo qis ntawm mercury (I). Cov peev xwm ntawm Calomel electrode nyob ntawm kev ua chloride ion, tab sis qhov no yog khaws cia tas li , thiab saturated, vim tam sim no ntawm ntau tshaj Cl nyob rau hauv undissolved KCl crystals.

Dab tsi yog qhov zoo ntawm calomel electrode?

Qhov zoo ntawm calomel electrode : Tsis muaj kev sib cais ntsev yuav tsum tau vim nws twb muaj ib sab raj uas muaj KCl tov. Muaj peev xwm tsis hloov pauv nrog lub sijhawm thiab kev hloov pauv me ntsis hauv qhov kub thiab txias.

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