2B - Tests for halide, sulfate and carbonate ions Flashcards by Michelle Yick | Brainscape

Q

Carbonate ion (CO3^2-)

A

Add dilute nitric acid

Obsvervation = Fizzing / effervescence

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Q

Sulfate ions (SO4^2-)

A

Add either: Barium chloride or Barium nitrate

Obsvervation = White PPT

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Q

Chloride ions (Cl^-)

A

Add aqueous silver nitrate

Obsvervation = White PPT

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Q

Bromide ions (Br^-)

A

Add aqueous silver nitrate

Obsvervation = Cream PPT

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Q

Iodide ions (I^-)

A

Add aqueous silver nitrate

Observation = Yellow PPT

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Q

Ammonium ions (NH4⁺)

A

Add aqueous NaOH

Observation = Waft a pungent scent (NH3_(g)). Turns damp red litmus paper blue

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