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Therefore, CaO would be somewhat soluble because of Ca2+. Example 4: (NH4)2CO3 is soluble because of NH4. +, ... How about HCl? How about AgCl? How about. Ba ... a sample of waste water containing Ca2+(aq), Cu2+(aq) and Pb2+(aq),. ○ HCl(aq),. ○ (NH4)2CO3(aq),. ○ (NH4)2S(aq). No other reagents should be used. Standard ... Ba(NO3)2 will simply dissolve in water or in HCl(aq), no insoluble precipitates. MgSO4 is soluble in water; you won't see it, but HSO4^- ion will form. reacting the unknown salt with concentrated HCL and checking for a precipitate and identifying ... (NH4)2CO3 and CaS04 and if there is an immediate precipitate ... ... HCl, dissolves due to decomposition of sulphite by dilute HCl. ... NH4Cl and an excess of NH4OH solution followed by solid ammonium carbonate. (NH4)2CO3. One mole of Ammonium Carbonate [(NH 4 ) 2 CO 3 ] and two moles of Hydrogen Chloride [HCl] react to form two moles of Ammonium Chloride [NH 4 Cl] , one mole of ... Jul 13, 2024 ... Cho dung dịch NH3 vào dung dịch chất nào sau đây thu được kết tủa trắng? A. HCl. B. H2SO4. C. carbonates would you expect to be soluble in aqueous solution? a. (a) MgCO3 b. (b) CaCO3 c. (c) (NH4)2CO3 ... HCl found in chemistry laboratories. The ... (NH4)2CO3 (aq) + CaCl2 (aq) → 2 NH4Cl (aq) + CaCO3 (s) b. NaC2H3O2 (aq) + ... b) NaC2H3O2 (aq) + HCl (aq) → NaCl (aq) + HC2H3O2 (aq). Total ionic ... Jan 15, 2020 ... Then to the filtrate NH4Cl, NH4OH, (NH4)2CO3 was added which ... HCl excess, remove copper with H2S and cobalt with (NH4)2S; I do have ...