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salts qualitative analysis - test for cations w (NaOH) Flashcards

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12717769921aluminium Al3+ in aqueous NaOHwhite ppt aluminium hydroxide0
12717795566aluminium Al3+ in excess NaOHwhite ppt dissolves to form colourless solution sodium aluminate1
12717815077calcium Ca2+ in aqueous NaOHwhite ppt Ca(OH)22
12717853105calcium Ca2+ in excess NaOHinsoluble white ppt calcium hydroxide3
12717862304lead (ii) Pb2+ in aqueous NaOHwhite ppt lead (ii) hydroxide4
12717878288lead (ii) Pb2+ in excess NaOHwhite ppt dissolves to form colourless solution sodium plumbate5
12717901070zinc Zn2+ in aqueous NaOHwhite ppt zinc hydroxide6
12717912043zinc Zn2+ in excess NaOHwhite ppt dissolves to form colourless solution sodium zincate7
12717923008copper Cu2+ in aqueous NaOHblue ppt copper (ii) hydroxide8
12717931450copper Cu2+ in excess NaOHblue ppt copper (ii) hydroxide9
12717992191iron (ii) Fe2+ in aqueous NaOHdirty green ppt iron (ii) hydroxide10
12718104702iron (ii) Fe2+ in excess NaOHdirty green ppt iron (ii) hydroxide11
12718133836iron (iii) Fe3+ in aqueous NaOHreddish brown ppt iron (iii) hydroxide12
12718149625iron (iii) Fe3+ in excess NaOHreddish brown ppt iron (iii) hydroxide13
12718160478ammonium NH4+ in aqueous NaOHno ppt14
12718162342ammonium NH4+ in excess NaOHammonia gas produced on warming, turns moist red litmus blue ammonium hydroxide15
12718183775potassium K+ in aqueous NaOHno ppt16
12718187371potassium K+ in excess NaOHno gas given off17
12718197879sodium Na+ in aqueous NaOHno ppt18
12718201288sodium Na+ in excess NaOHno gas given off19
12718203686white ppt cationscalcium aluminium lead zinc20
12718211704coloured ppt cationsiron (ii) iron (iii) copper (ii)21
12718219595no ppt cationssodium potassium ammonium22
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