Cov txheej txheem:
Video: Koj yuav ua li cas kom paub tseeb qhov tseeb hauv titration?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov ntsiab lus hauv pawg no (9)
- Meniscus ntawm qhov muag. Kom tsis txhob parallax yuam kev.
- Pobzeb dawb. Kom pom qhov kawg pom meej dua.
- Tshem tawm cov funnel ua ntej titrating . Nce lub vol ua lub titre me.
- Dropwise ntxiv.
- Tsis muaj npuas hauv pipette & burette ntawm qhov taub.
- Swirling thaum titration .
- Ob peb tee ntawm qhov taw qhia.
- Rov ua dua titration .
Tsis tas li ntawd, yuav ua li cas thiaj tau txais kev nyeem ntawv tseeb tshaj plaws hauv titration?
Electrode Calibration pH electrodes yuav tsum tau ntsuas txhua hnub kom ua tiav qhov kev nyeem ntawv tseeb tshaj plaws . Ob txoj hauv kev yog feem ntau txaus, thaum siv qhov tsis tsim nyog. Qhov tsis tsim nyog yuav tsum raug xaiv raws li ntsuas ntau yam yuav rau xav tau los ntawm titration.
Tsis tas li ntawd, vim li cas qhov tseeb yog qhov tseem ceeb hauv titration? Titration yog nqa tawm siv cov concentrations uas peb ua rau cov laj thawj zoo heev: Qhov kawg taw tes yog zoo txhais thiab cov qhov tseeb yog zoo. Thaum koj nce qhov concentration qhov tseeb txo qis, muaj feem ntau ntawm 'overshooting' qhov kawg.
Ib tug kuj yuav nug, dab tsi yog suav hais tias yog cov ntaub ntawv titration?
Qhov tseeb yog txhais raws li qhov ze ntawm qhov tshwm sim (feem ntau qhov nruab nrab ntawm ob peb qhov kev ntsuas) mus rau qhov paub lees paub tus nqi. Siv qhov ntsuas ntsuas "buret" txhawm rau ntxiv cov txheej txheem daws teeb meem, nws muaj peev xwm txiav txim siab nrog qhov tseeb tus nqi ntawm kev tshuaj xyuas tam sim no hauv qhov tsis paub daws teeb meem thaum lub titration mus txog qhov kawg.
Dab tsi tuaj yeem cuam tshuam cov txiaj ntsig titration?
Ob peb yam ua tau ua rau yuam kev hauv titration kev tshawb pom, suav nrog kev nyeem ntawv tsis raug, qhov yuam kev qhov tseem ceeb lossis cov txheej txheem tsis raug. Kev saib xyuas yuav tsum tau ua raws li qhov kev daws teeb meem ntawm qhov paub txog qhov concentration yog nkag mus rau hauv ib lub ntim tshwj xeeb ntawm qhov tsis paub los ntawm kev kuaj iav xws li burette lossis pipette.
Pom zoo:
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