Video: Koj siv pH calibration hmoov li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev ntsuas pH Kev daws
Siv lub pob paj yeeb rau calibrate rau a pH ntawm 4.0 lossis Pob Ntsuab rau 6.86 (ntawm 25C lossis 77F). Ntxiv cov ntsiab lus ntawm ib pob rau hauv ib khob (8 fl oz. / 250 ml) dej
Hauv qhov no, kuv tuaj yeem siv dab tsi los ntsuas kuv tus ntsuas pH?
Rau ib-point calibrations, koj yuav siv tus pH 7.01 Buffer Solution. Rau multi-point calibrations, koj yuav siv tag nrho peb txoj kev daws teeb meem. Yaug tawm koj meter nrog Electrode Cleaning Solution. Ib zaug lub meter yog ntxuav, nias lub khawm CAL nyob rau sab xis ntawm lub meter pib calibration.
Ib yam li ntawd, koj ua li cas pH calibration? Calibrating Koj pH Meter. Muab koj lub electrode tso rau hauv qhov tsis muaj nrog a pH tus nqi ntawm 7 thiab pib nyeem. Nias qhov " ntsuas" lossis calibrate khawm pib nyeem cov pH ib zaug koj electrode muab tso rau hauv qhov tsis. Tso cai rau pH nyeem kom ruaj khov ua ntej cia nws zaum li ntawm 1-2 feeb.
Tom qab ntawd, lo lus nug yog, pH tsis yog hmoov siv rau dab tsi?
Tsis pub kev daws teeb meem yog siv li ib txoj kev khaws cia pH ntawm tus nqi yuav luag tas li hauv ntau yam kev siv tshuaj lom neeg. Hauv qhov xwm txheej, muaj ntau lub tshuab uas siv buffering rau pH kev cai. Piv txwv li, bicarbonate tsis kam system yog siv rau tswj cov pH ntawm ntshav.
Koj ua li cas kuaj pH ntawm hmoov?
Siv cov dej nruab nrab deionized pH nyob ze 7. Dampen lub xeem strip siv lub raj mis tsuag (mist) thiab xeem tshuaj tam sim ntawd. Tshawb xyuas hais tias cov khoom tsis yog dej reactive thiab yog hais tias cov khoom yog miscible nyob rau hauv dej nws yuav qhia ib tug nyob ze qhov tseeb tshwm sim.
Pom zoo:
Koj puas tuaj yeem hloov ua kua ua hmoov?
Maltodextrin yog cov piam thaj polymer tsim los ntawm hydrolysis ntawm starch. Tapioca maltodextrin hloov cov kua topowder daim ntawv. Liquefy cov khoom muaj roj ntau ntawm koj xaiv, yog tias nws yog nyob rau hauv daim ntawv, xws li khoom chocolate. Koj tuaj yeem lim cov hmoov los ntawm cheesecloth yog tias qhov txiaj ntsig fluffier xav tau
Tus tsim tawm daim ntawv twg yog siv rau cov hmoov qhuav qhuav?
Tus tsim tawm tsis muaj dej yuav tsum tau siv rau qhov ziab kom huv si los ua ib qho me ntsis translucent dawb txheej
Thaum twg koj yuav tsum siv cov haujlwm series koj siv nws li cas?
Nws yog siv los txiav txim siab cov khoom ntawm ib qho kev hloov pauv, uas yog hlau A yuav hloov lwm cov hlau B hauv kev daws yog tias A siab dua hauv koob. Kev ua yeeb yam ntawm qee cov hlau ntau dua, teev nyob rau hauv qhov kev txiav txim qis ntawm reactivity
Yuav ua li cas thaum koj kub tooj liab hmoov?
Thaum cov "tooj liab hmoov" rhuab nyob rau hauv ib tug 'tshuaj yej tais', tooj liab hmoov nto yuav coated nrog "dub xim" vim lub formation ntawm 'tooj liab oxide' los ntawm nto oxidation.EXPLANATION: tooj liab reacts nrog oxygen nyob rau hauv cov huab cua uponheating thiab ua tooj liab. oxide
Thaum twg koj yuav tsum siv correlation thiab thaum twg koj yuav tsum siv yooj yim linear regression?
Regression feem ntau yog siv los tsim cov qauv / qhov sib npaug los kwv yees cov lus teb tseem ceeb, Y, los ntawm cov txheej txheem kwv yees (X) sib txawv. Kev sib raug zoo feem ntau yog siv los ua kom sai thiab ua kom luv luv cov kev taw qhia thiab lub zog ntawm kev sib raug zoo ntawm ib pawg ntawm 2 lossis ntau tus lej sib txawv