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Chemistry > Anion Precipitates > Flashcards

Anion Precipitates Flashcards

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1
Q

CO3 2−

A
  • Add dilute acid and bubble the gas produced through limewater.
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2
Q

OH−

A
  • Turns red litmus blue, Add NH4+ and heat, ammonia gas produced
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3
Q

SO4 2 −

A
  • add Ba(NO3)2 or BaCl - white PPT forms
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4
Q

PO4 3−

A

Addition Ba(NO3)2 at low pH yields NO PPT; white PPT forms when pH is raised by adding NH3

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5
Q

I−

A
  • Add AgNO3 to acidified sample; yellow PPT forms

- Add Pb(NO3)2; yellow PPT forms

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6
Q

Cl−

A
  • Add AgNO3 to acidified sample; white PPT forms – blackens in sunlight, Add dilute ammonia and PPT dissolves
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7
Q

Br−

A
  • Add AgNO3 to acidified sample; cream PPT forms – darkens slowly in sunlight, Add concentrate ammonia and PPT dissolves
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8
Q

CH3COO−

A

Only forms a PPT with concentrated AgNO3 and no other cations

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Chemistry (7 decks)

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