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IGCSE Analyzing

Testing ions and graphs

TestResult
How do you test for Cu2+ ions? Add NaOH -> blue precipitate (Cu(OH2)
How do you test for Fe2+ ions? Add NaOH -> green precipitate (Fe(OH2)
How do you test for Fe3+ ions? Add NaOH -> brown precipitate (Fe(OH3)
How do you test for K+ ions? Flame test -> lilac
How do you test for Na+ ions? Flame test -> orange/yellow
How do you test for Li+ ions? Flame test -> crimson
How do you test for Ca2+ ions? Flame test -> brick-red
How do you test for NH4+ ions? Add NaOH, warm and test with red litmus -> turns blue
How do you test for CO3 2- ions? Add nitric acid -> bubbles of CO2
How do you test for Cl- ions? Add nitric acid and silver nitrate -> white precipitate (AgCl)
How do you test for Br- ions? Add nitric acid and silver nitrate -> cream precipitate (AgBr)
How do you test for l- ions? Add nitric acid and silver nitrate -> yellow precipitate (AgI)
How do you test for SO4 2- ions? Add barium nitrate -> white precipitate (BaSO4)
Created by: mthorpe1
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