Barium hydroxide tuaj yeem npaj tau los ntawm dissolving barium oxide (BaO) hauv dej : BaO + H2O → Ba(OH) 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.
Cov tshuaj tiv thaiv tshuaj nyob hauv Barium Hydroxide yog dab tsi?
Cov tshuaj tiv thaiv tsis zoo ntawm cov khoom hydrated barium hydroxide nrog cov khoom ammonium chloride yog endothermic hauv xwm. Cov tshuaj tiv thaiv ua kua, nrog rau qhov poob ntawm qhov kub thiab txias txog -20 ° C. Nws yog sawv cev raws li: Ba(OH)2 (aqueous) + 2NH4Cl (aqueous) → BaCl2 (aqueous) + 2NH3 (gaseous) + HOH (kua)
YPuas yog Barium Hydroxide octahydrate soluble?
Barium Hydroxide Octahydrate yog muaj dej tsis txaus crystalline Bariumqhov chaw siv tau tshaj (pH) ib puag ncig.
Puas muaj dej ntau npaum li cas hauv Barium Hydroxide octahydrate?
Rule 2. Greek prefixes txuas rau lo lus "hydrate" los qhia cov naj npawb ntawm cov dej molecules ib chav tsev formula rau cov compound (piv txwv li, Ba(OH) 2 • 8H2O; 8 dej molecules="octahydrate").
Yuav ua li cas cov dej muaj nyob hauv ib mole ntawm barium hydroxide octahydrate?
(Nco ntsoov cov molar loj ntawm cov dej yog 18.02 g / mol.) Sib tham cov lus teb: Cov molar loj ntawm barium hydroxide octahydrate yog 315.51 g / mol.
