Cov txheej txheem:
Video: Muaj pes tsawg grams ntawm sodium hydroxide nyob rau hauv ib 2m tov?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub sij hawm 2 M NPO yog abbreviation rau 2 molar sodium hydroxide daws . Qhov no txhais tau hais tias 2 moles (los yog 2 x 40 g = 80 g) NaOH yog yaj dej tsis txaus los ua ib liter ntawm daws.
Ntawm no, koj ua li cas 2m daws ntawm NaOH?
Rau npaj ib liter ntawm ib molar daws ntawm sodium hydroxide peb xav tau ib tug mole ntawm sodiumhydroxide . Koj yuav tsum tau yaj 40 g ntawm sodiumhydroxide nyob rau hauv ib liter dej kom tau ib liter ntawm 1 molarsolution . 2.
Ib tug kuj yuav nug, koj ua li cas xam 2n NaOH? Ua 1 N daws ntawm NaOH Yog li qhov sib npaug hnyav ntawm NaOH yog 40. Ua kom 1 N tov, yaj 40.00 g ntawm sodium hydroxide nyob rau hauv dej kom ntim 1 liter. Rau 0.1 N tov (siv rau wineanalysis) 4.00 g ntawm NaOH ib liter yog xav tau.
Tsuas yog li ntawd, pes tsawg grams ntawm sodium hydroxide?
39,9971g ib
Koj ua li cas 1m daws ntawm NaOH?
Txhawm rau npaj cov tshuaj 0.1M NaOH. -
- Dilute tus txheej txheem 1.0 M NaOH tov los ntawm qhov zoo ntawm 10.
- los yog, Dilute ib qho tsis standardized 1.0 M NaOH tov los ntawm ib tug factorof 10 thiab ces standardize.
- los yog, yaj 4 gm NaOH hauv 1 L ntawm cov dej distilled (ib qho kev xaiv tsawg dua yuav tsum tau ua qauv)
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