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Unknown 9 pg 2 - Anions 0 Cl acidify with HN03(one dropper...

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Unformatted text preview: Anions 0 Cl': acidify with HN03 (one dropper), add AgNOa. If ppt, then present. - 5042" and H804? acidlfy with I‘INOg, add Ba(NO3)2. ppt = HSOJ/SOf', check pH - NO3‘: cover ferrous ammonia sulfate wf soln. Add 3 drops 18M H2304. Red— brown ppt W N03 presence. I OH': check. pH Insoluble 0 White: Ca(OH)2*, CaCOf“, CaSO4, Mg(OH)3*, Zn(OH)2*, ZnC03, 2110*, 2118*, AgCl, AgZSO4 (soln in hot water?), MgCOa 0 Black: CuO, CuS, Aggo, Aggs - Dark Green: Ag1C03 0 Blue: CLICOg *Soluble in 1M HN03 - Insoluble tests ‘ . 0 Dark brown, black, or dark green, CuCO3, CuO, CuS, Ag2C03, Ag;O,Ag2$ Dissolved: AgZO (add 1M NaC] to check) CuO (Blue soln) Bubbles Ag2CO3 (yellow soln, + Dissolved use NaCl to check), CuCO; (blue soln) Add 2M HNOg(hot water bathT) Nothing Agzs (+15M HNO; = colorless or yellow soln) CuS(+same = blue soln) 0 White salts — Ca(OH)2, CaSO4*2H20, CaC03, Mg(OH)2, MgC03 - Flame test — treat solid w/ EM HCl, if flame is red-orange, then Ca2+ is present, proceed to below, if no color, then go to the ste . after - Dissolved- Ca(OH)2 Treat with 1M HCl Ca(OH)2 CaSOfizflrzO CaC03 Nothing — (32150321120 \ Dissolves w/ Bubbles — CaC03 ...
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