Yuav ua li cas koj xam barium hydroxide?
Yuav ua li cas koj xam barium hydroxide?

Video: Yuav ua li cas koj xam barium hydroxide?

Video: Yuav ua li cas koj xam barium hydroxide?
Video: Tsis Paub Yuav Ua Li Cas - maim lis 2024, Kaum ib hlis
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Barium hydroxide tuaj yeem npaj los ntawm kev tawg barium oxide (BaO) hauv dej: BaO + 9 H2O → Ba(OH)2· 8 H2O. Nws crystallises li octahydrate, uas hloov mus rau monohydrate thaum cua sov hauv huab cua. Ntawm 100 ° C hauv lub tshuab nqus tsev, cov monohydrate yuav tawm los BaO thiab dej.

Hais txog qhov no, tus nqi ntawm barium hydroxide yog dab tsi?

Kev piav qhia: Barium yog ib lub caij hauv Pawg 2, yog li nws muaj ob lub valence electrons, thiab nws yog nqi yog 2+. Hydroxide yog polyatomic tsis zoo ion nrog valency ntawm 1, thiab nws yog nqi yog 1-. Raws li barium yog hlau thaum hydroxide yog cov hlau tsis yog hlau, lawv ua ke los ua ib qho ionic compound.

Ib yam li ntawd, puas barium hydroxide yaj hauv dej? Dej

Ib yam li ntawd, tib neeg nug, puas yog barium hydroxide tsim los nag?

Feem ntau ntawm lub sij hawm, ib tug faint dawb nag xob nag cua ntawm barium hydroxide yog tsim. Barium hydroxide yog me ntsis soluble nyob rau hauv dej thiab muaj peev xwm tsim ib tug tov nrog ib tug concentration ntawm ib ncig ntawm 0.1 M ntawm chav tsev kub; barium hydroxide saum toj no 0.1 M yuav insoluble.

Barium hydroxide dissociate li cas?

(1) Barium hydroxide dissociates tag nrho hauv dej los tsim barium ions thiab hydroxyl ions: {eq}Ba(OH)_2 (s) ightarrow Ba^{2+} (aq) +

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