2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Thaum lub cev pH tsis ruaj khov, tsis zoo, lossis qhov kev sib tsoo, qhov teeb meem feem ntau yog ib qho hluav taws xob hauv av hauv qhov system, tshwj xeeb yog lub tank thiab / lossis cov kav dej. yog yas. Txhawm rau txheeb xyuas qhov teeb meem no, tshem tawm cov electrode thiab calibrate nws nyob rau hauv ib tug paub tsis nyob rau hauv lub beaker.
Dab tsi tuaj yeem ua rau pH sojntsuam muab cov ntawv nyeem tsis raug?
Dirty lossis faulty electrodes tuaj yeem ua rau txhua yam los ntawm cov lus teb qeeb rau kev nyeem ntawv tsis raug tag. Piv txwv li, yog tias ib zaj duab xis tseem nyob ntawm pH sensor tom qab ntxuav, qhov kev ntsuas qhov ua yuam kev tuaj yeem raug txhais yuam kev raws li qhov xav tau rau kev rov ntsuas dua.
Vim li cas pH ntsuas hloov pauv?
Lwm cov lus piav qhia ntawm qhov hloov pauv pH ntsuas suav nrog: Cov lus qhia electrode tsis txaus lossis tsis txuas ntxiv rau hauv cov tshuaj. Nyob rau hauv cov ntaub ntawv no nce lub ntsuas ntim. … Cov iav pH electrode tau khaws cia tsis raug thiab ua haujlwm tsis raug.
Koj ua li cas kom ruaj khov pH meter?
Yaug cov electrode nrog dej deionized thiab blot qhuav siv ib daim ntaub so ntswg (Shurwipes lossis Kimwipes muaj nyob rau hauv chav kuaj). 3. Muab cov electrode tso rau hauv cov tshuaj pH 7 tsis, cia cov zaub kom ruaj khov thiab, tom qab ntawd, teeb tsa cov zaub nyeem 7 los ntawm kev kho cal 1. Tshem tawm cov electrode ntawm qhov tsis.
Dab tsi ua rau pH poob?
pH kuj yog nyob ntawm temperature. Yog tias qhov kev daws teeb meem hloov pauv saiqhov kub thiab txias vim tias nws nyuam qhuav tawm ntawm lub tub yees, ces yuav muaj qee qhov drift raws li hydrogen ions hloov qib kev ua haujlwm. … Rau qhov hloov pauv kub ceev, nquag, yuav tsum muaj ib qho hluav taws xob tshwj xeeb.
Pom zoo:
Vim li cas emulsion tsis ruaj khov?
Emulsions yog cov tshuab thermodynamically tsis ruaj khov thiab nrawm nrawm rau hauv nyias txheej ntawm cov roj thiab dej [21]. Qhov no yog vim sib txawv ntawm cov roj thiab aqueous theem thiab kev sib cuag tsis zoo ntawm cov roj thiab dej molecules [
Puas muaj qhov chaw ruaj khov puas txhais tau tias tsis muaj zog nyob ruaj khov?
Thawj zaug nco ntsoov tias lub sijhawm kawg thib ob tsis suav tias yog lub ntsiab lus ntawm qhov muaj zog nyob ruaj khov, yog li, muaj zog ruaj khov tsis tas txhais tau tias tsis muaj zog nyob ruaj khov. Puas muaj zog nyob ruaj khov txhais tau tias tsis muaj zog nyob ruaj khov?
Vim li cas lub nplhaib beta lactam ntawm penicillin tsis ruaj khov?
Hydrolysis ntawm β-lactam nplhaib hauv penicillin ua rau nws tsis ua haujlwm. Hmoov tsis zoo, vim yog lub siab reactivity ntawm β-lactam nplhaib, ib penicillin tuaj yeem hnov mob nrog dej hauv cov kua qaub(raws li pom hauv plab), ua rau lub nplhaib β-lactam, hauv Cov tshuaj tiv thaiv hydrolysis.
Vim li cas cov lus pom zoo yog qhov tsis ruaj khov?
Cov lus qhia zoo yog cov kab ke tsis ruaj khov. Vim tias qhov kev hloov pauv hauv ib qho kev tawm tswv yim ua rau cov lus teb uas ua rau muaj kev hloov pauv txuas ntxiv mus rau tib qho kev taw qhia, cov lus pom zoo tuaj yeem ua rau muaj kev khiav tawm.
Vim li cas lub sijhawm tsis ruaj khov tsis zoo?
Qhov thib peb suav tias yog qhov tsis zoo tag nrho vim nws tuaj yeem ua chord loj lossis me, muab qhov sib txawv, zoo siab lossis tu siab. Thaum peb hnov Dunstable lub suab paj nruag niaj hnub no, nws suab zoo dua li kev hu nkauj thaum ub vim peb pob ntseg tau ua rau cov chords loj thiab me.
