1: Experimental Chemistry: Qualitative Analysis of Salts: Identifying Cations (part2) Flashcards

9303037968	Identifying cations	can be identified by using sodium hydroxide solution and aqueous ammonia (all ex Na+,K+ and NH+4 it gives precipitate with alkalis	0
9303048209	Can be identified by noting	-colour of the precipitate when it react NaOH (aq) / NH4 (aq) -whether the precipitate is soluble / insoluble with NaOH (aq) / NH4 (aq) -whether ammonia gas is liberated on heating with NaOH (aq)	1
9303059777	Al3+ (aluminium) with a few drops of NaOH	white ppt formed	2
9303066299	Al3+ (aluminium) with excess of NaOH	ppt will dissolve in excess to give colourless solution	3
9303069182	Al3+ with a few drops of NH3	white ppt formed	4
9303072199	Al3+ with excess NH3	ppt formed is insoluble in excess	5
9303077270	Ca2+ with a few drops of NaOH	white ppt formed	6
9303079517	Ca2+ with excess of NaOH	ppt is insoluble in excess	7
9303081119	Ca2+ with few drops / excess NH3	no ppt formed	8
9303088095	Cu2+ with few drops NaOH	light blue ppt will form	9
9303089235	Cu2+ with excess NaOH	ppt will be insoluble in excess	10
9303094415	Cu2+ with few drops of NH3	light blue ppt will form	11
9303094880	Cu2+ with excess of NH3	ppt will dissolve in excess to give a deep blue solution	12
9303105458	Fe2+ with a few drops of NaOH	A green ppt will form	13
9303106557	Fe2+ with excess of NaOH	ppt is insoluble in excess	14
9303112776	Fe2+ with few drops of NH3	green ppt will form	15
9303124781	Fe2+ with excess of NH3+	ppt is insoluble in excess	16
9303129174	Fe3+ with a few drops of NaOH	reddish-brown precipitate is formed	17
9303131008	Fe3+ with excess NaOH	ppt is insoluble in excess	18
9303139711	Fe3+ with few drops of NH3	redish-brown precipitate will form	19
9303142662	Fe3+ with excess drops of NH3	ppt is insoluble in excess	20
9303146403	Pb2+ with a few drops of NaOH	white ppt will form	21
9303149006	Pb2+ with excess NaOH	ppt dissolves in excess to give colourless solution	22
9303153401	Pb2+ with a few drops of NH3	white ppt is formed	23
9303156619	Pb2+ with excess NH3	ppt is insoluble in excess	24
9303181640	Zn2+ with a few drops of NaOH	white ppt will form	25
9303183656	Zn2 with excess of NaOH	ppt dissolves in excess to give coloursless solution	26
9303192172	Zn2 with a few drops of NH3	white ppt will form	27
9303193305	Zn2 with excess of NH3	ppt dissolves in excess to give colourless solution	28
9303244586	NH4 with a few drops of NaOH	no ppt will form	29
9303245855	NH4 with excess NaOH	during heating, ammonia gas is evolved. Ammonia will turn red litmus blue	30
9953665419	To determine whether the experiment contains aqueous sodium carbonate OR aqueous ammonium carbonate	Add sodium Hydorxide (NaOH) and warming	31