Qualitative Analysis of Gases, Cations and Anions 5.0 / 5 based on 1 rating ? ChemistryTesting and analysing substancesIGCSEAll boards Created by: KarliduPlessisCreated on: 19-08-16 11:15 Test for aqueous calcium using sodium hydroxide. white ppt., insoluble in excess. 1 of 32 Test for hydrogen gas pops with a lighted splint 2 of 32 Test for sulfate in solution. acidify with dilute nitric acid, then aqueous barium nitrate. Result: white ppt. 3 of 32 Test for aluminium in solution using aqueous ammonia (NH3) white ppt., insoluble in excess 4 of 32 Test for zinc in solution using aqueous sodium hydroxide. white ppt., soluble in excess giving a colourless solution. 5 of 32 Test for ammonia gas Turns damp red litmus paper blue. 6 of 32 Test for iodide acidify with dilute nitric acid, then add aqueous silver nitrate. result: yellow ppt. Adding ammonia solution: insoluble 7 of 32 test for oxygen relights a glowing splint 8 of 32 Test for ammonium aqueous sodium hydroxide -> ammonia produced on warming 9 of 32 Test for copper in solution using aqueous ammonia light blue ppt, soluble in excess giving a dark blue solution 10 of 32 Test for iron(III) in solution using aqueous sodium hydroxide red-brown ppt, insoluble in excess. 11 of 32 test for carbonate add dilute hydrochloric acid to solid -> effervescence, carbon dioxide produced 12 of 32 Test for chlorine gas bleaches damp litmus paper. 13 of 32 Test for chloride in solution acidify with dilute nitric acid, then add aqueous silver nitrate. gives white ppt. Adding ammonia solution: soluble 14 of 32 Test for iron(II) in solution using aqueous ammonia green ppt., insoluble in excess. 15 of 32 Test for calcium in solution using aqueous ammonia no ppt., or very slight white ppt. 16 of 32 Test for zinc in solution using aqueous ammonia white ppt., soluble in excess giving a colourless solution 17 of 32 Test for iron (III) in solution using aqueous ammonia red-brown ppt, insoluble in excess. 18 of 32 Test for aluminium in solution, using aqueous sodium hydroxide white ppt., soluble in excess giving a colourless solution 19 of 32 Test for carbon dioxide gas turns limewater (CaOH) milky 20 of 32 Test for iron(II) in solution using aqueous sodium hydroxide green ppt., insoluble in excess 21 of 32 Test for nitrate in solution add aqueous sodium hydroxide then aluminium foil; warm carefully -> ammonia produced 22 of 32 test for copper in solution using aqueous sodium hydroxide light blue ppt., insoluble in excess. 23 of 32 Test for Ammonium Add sodium hydroxide, gives off ammonia gas when warmed. 24 of 32 Test for hydroxide in a compound (OH) Turns litmus blue 25 of 32 Test for sulfite (SO3) dilute HCl to solid, then aqueous KMnO4. Result: decolorises purple solution 26 of 32 Test for chromium in solution using aqueous sodium hydroxide green-grey ppt., soluble in excess giving a green solution 27 of 32 Test for chromium in solution using aqueous ammonia green- grey ppt., insoluble in excess. 28 of 32 Test for bromide in solution Acidify with dilute nitric acid, add aqueous silver nitrate. Result: cream ppt. Adding aqueous ammonia: partially soluble 29 of 32 Test for magnesium in solution using aqueous ammonia white ppt., insoluble in excess. 30 of 32 Test for magnesium in solution using aqueous sodium hydroxide white ppt., insoluble in excess. 31 of 32 Test for sulfur dioxide gas Paper soaked in KMno4 -> paper goes from purple to colourless. 32 of 32
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