Yuav ua li cas kom yaj bromophenol xiav?

Video: Yuav ua li cas kom yaj bromophenol xiav?

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

Bromophenol xiav qhia daws, yaj 0.125 g ntawm cov khoom reagent ua ke nrog 0.1 g ntawm sodium hydroxide hauv 250 ml dej. Acetylacetone tov, ntxiv 10 ml ntawm acetylacetone rau 90 ml ntawm xylene.

Tsis tas li ntawd, koj yuav ua li cas dilute bromophenol xiav?

Dissolve 5.0 g ntawm bromophenol xiav hmoov (tetrabromophenolsulfonphthalein) hauv 74.5 mL ntawm 0.1 N sodium hydroxide (NaOH) tov. Dilute nrog dej purified rau 500 mL. Xim thiab pH ntau: daj 3.0-4.6 xiav.

Qhov thib ob, bromophenol xiav qhov taw qhia ua haujlwm li cas? Bromophenol Xiav yog pH qhov taw qhia , thiab ib tug zas xim tshwm raws li ib tug muaj zog xiav xim. Bromophenol xiav muaj qhov tsis zoo me ntsis thiab yuav txav mus rau tib qho kev taw qhia zoo li DNA, tso cai rau tus neeg siv los saib xyuas qhov kev nce qib ntawm cov molecules txav los ntawm gel. Tus nqi ntawm kev tsiv teb tsaws txawv nrog gel muaj pes tsawg leeg.

Ib sab saum toj no, puas yog bromophenol xiav soluble hauv dej?

Bromophenol Xiav Cov khoom Soluble nyob rau hauv sodium hydroxide, cawv, benzene, thiab acetic acid. Me ntsis soluble nyob rau hauv dej . Stability: ruaj khov.

Dab tsi wavelength ua bromophenol xiav nqus?

590nm ua

Pom zoo:

Yuav ua li cas yog tag nrho yaj yaj nyob rau hauv lub pas dej ua ke?

Koj cov khoom tawg tag nrho, lossis TDS, tus nqi yog qhov ntsuas ntawm tag nrho cov khoom uas yaj hauv koj lub pas dej. Cov pas dej da dej yuav tsum muaj qhov siab tshaj TDS tus nqi ntawm ib ncig ntawm 1,500 txog 2,000 ppm. Piv txwv li, cov dej haus tuaj yeem muaj qhov siab tshaj TDS tus nqi ntawm 500 ppm raws li EPA

Dab tsi wavelength ua bromophenol xiav nqus?

Cov txiaj ntsig tau pom tau hais tias qhov siab tshaj plaws nqus ntawm lub teeb bromophenol xiav tshwm sim hauv wavelength ntawm 590nm

Vim li cas cov xim cuam tshuam pom tseeb rau cov yeeb yaj kiab nyias dua li cov yeeb yaj kiab tuab?

Kev cuam tshuam ntawm lub teeb los ntawm sab sauv thiab sab qis ntawm cov xab npum lossis cov tshuaj ntxuav tes yog tshwm sim. Vim li cas cov xim cuam tshuam pom tseeb rau cov yeeb yaj kiab nyias dua li cov yeeb yaj kiab tuab? Vim yog kev cuam tshuam yoj, zaj duab xis ntawm cov roj ntawm dej hauv lub hnub ci pom tau tias daj rau cov neeg soj ntsuam ncaj qha saum lub dav hlau

Yuav ua li cas koj xam tus nqi ntawm cov kuab tshuaj kom yaj?

Solubility qhia qhov siab tshaj plaws ntawm cov khoom uas tuaj yeem yaj hauv cov kuab tshuaj ntawm qhov kub thiab txias. Xws li kev daws yog hu ua saturated. Faib qhov loj ntawm qhov sib xyaw los ntawm qhov hnyav ntawm qhov hnyav thiab muab 100 g los xam cov solubility hauv g / 100g