Yuav ua li cas kom qhuav lub volumetric hwj?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Cov txheej txheem hauv cov chaw sim yog koj ntxuav nws thiab tom qab ntawd yaug nrog cov kuab tshuaj organic. Ces tus iav tuaj yeem muab tso rau hauv qhov cub ntawm qhov kub qis (100 ° F) thiab nws yuav qhuav ceev ceev. Qhov kev hloov hauv ntim vim qhov kub thiab txias yuav tsum insignificant txheeb ze rau qhov yuam kev ntawm koj iav.

Yog li ntawd, lub khob ntim ntim puas yuav tsum tau qhuav?

A volumetric hwj yuav tsum ib txwm muab yaug nrog me me ntawm cov kuab tshuaj los siv. Cov kauj ruam no tiv thaiv kev sib kis ntawm cov tshuaj los ntawm dej los yog lwm yam kab mob ntawm cov iav hauv phab ntsa thiab tshem tawm cov xav tau rau qhuav tus lub hwj.

Tom qab ntawd, lo lus nug yog, vim li cas koj thiaj li yuav tsum tsis txhob tso lub khob ntim dej? Qhov no vim tias nws cov duab conical tsis tso cai rau kev nthuav dav thiab yog li lub iav tuaj yeem tawg. Tsis tas li ntawd yog tias koj yog cua sov cov khoom uas yuav tawm ib qho residue yuav yuav nyuaj heev los ntxuav nws. Txij li feem ntau Erlenmeyer khob yog ua nrog Pyrex iav, muaj yuav tsum yuav tsis muaj teeb meem cua sov lawv up.

Yog li ntawd, koj yuav ua li cas ntxuav lub khob ntim dej?

Pipets thiab Volumetric Flasks Qee zaum, tej zaum koj yuav tsum tau muab cov iav ntim rau ib hmos hauv dej soapy. Ntxuav pipets thiab volumetric khob siv dej sov soapy. Cov iav iav yuav tsum tau txhuam nrog txhuam. Yaug nrog dej kais dej tom qab peb mus rau plaub yaug nrog dej deionized.

Thaum twg koj yuav siv lub khob ntim ntim?

A volumetric hwj (ntsuas lub hwj los yog kawm tiav lub hwj ) yog ib yam khoom siv kuaj, ib hom kev kuaj lub hwj , calibrated kom muaj ib tug meej ntim ntawm ib tug tej yam kub. Volumetric khob yog siv rau qhov tseeb dilutions thiab npaj cov txheej txheem daws teeb meem.