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7594577
OCR - A-Level - Chemistry - Testing for Ions Flowchart
Description
A level Chemistry (Module 3) Flowchart on OCR - A-Level - Chemistry - Testing for Ions Flowchart, created by Josh Anderson on 08/02/2017.
No tags specified
chemistry
ions
chemistry
module 3
a level
Flowchart by
Josh Anderson
, updated more than 1 year ago
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Created by
Josh Anderson
over 7 years ago
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Resource summary
Flowchart nodes
Testing for ions
Add dilute strong acid
Bubble the gas released through limewater
Does it go cloudy?
Carbonate ion, CO3 ^(2-)
Yes
Add dilute hydrochloric acid and barium chloride
Is a white precipitate formed?
Sulfate ion,SO4 ^(2-)
Dissolve in water
No
Yes
Add aqueous silver nitrate
Is the colour obvious?
Add dilute aqueous ammonia
No
No
Note the colour
Is the colour obvious?
Yes
Yes
Add concentrated aqueous ammonia
Is the colour obvious?
Yes
Is there a white precipitate?
Silver chloride, AgCl
No
No
Is there a cream precipitate?
Silver bromide, AgBr
Is there a yellow precipitate?
Silver iodide, AgI
Does it dissolve in dilute ammonia?
Does it dissolve in concentratedammonia?
Yes
Yes
Yes
Yes
No
No
No
No
No
Add sodium hydroxide solution and heat
Test the gas released
Does it turn red litmus paper blue?
No
Ammonium ions
Yes
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