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Chemistry > Inorganic Tests > Flashcards

Inorganic Tests Flashcards

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1
Q

Why do we add nitric acid to a solution before we test for halides?

A
  • to remove any other ions that could form a precipitate with silver nitrate i.e. carbonate ions
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2
Q

How do we test for chloride ions?

A
  • add HNO3
  • add AgNO3
  • white precipitate forms
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3
Q

How do we test for bromide ions?

A
  • add HNO3
  • add AgNO3
  • cream precipitate forms
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4
Q

How do we test for iodide ions?

A
  • add HNO3
  • add AgNO3
  • yellow precipitate forms
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5
Q

Summarise AgCl’s solubility in ammonia

A
  • soluble in dilute NH3

- soluble in conc. NH3

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6
Q

Summarise AgBr’s solubility in ammonia

A
  • insoluble in dilute NH3

- soluble in conc. NH3

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7
Q

Summarise AgI’s solubility in ammonia

A
  • insoluble in dilute NH3

- insoluble in conc. NH3

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8
Q

Flame test result for lithium ions

A
  • red
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9
Q

Flame test result for sodium ions

A
  • yellow/orange
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10
Q

Flame test result for potassium ions

A
  • lilac
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11
Q

Flame test result for rubidium ions

A
  • red/purple
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12
Q

Flame test result for caesium ions

A
  • blue
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13
Q

Flame test result for calcium ions

A
  • brick red
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14
Q

Flame test result for strontium ions

A
  • crimson
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15
Q

Flame test result for barium ions

A
  • apple green
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16
Q

What occurs when dilute NaOH solution is added to a solution containing magnesium ions?

A
  • white precipitate forms
17
Q

What occurs when dilute NaOH solution is added to a solution containing calcium ions?

A
  • slightly soluble white precipitate forms
18
Q

What occurs when dilute NaOH solution is added to a solution containing strontium ions?

A
  • no observable change
19
Q

What occurs when dilute NaOH solution is added to a solution containing barium ions?

A
  • no observable change
20
Q

What occurs when Na2SO4 solution is added to a sample containing magnesium ions?

A
  • no observable change
21
Q

What occurs when Na2SO4 solution is added to a sample containing calcium ions?

A
  • thin white precipitate forms
22
Q

What occurs when Na2SO4 solution is added to a sample containing strontium ions?

A
  • white precipitate forms
23
Q

What occurs when Na2SO4 solution is added to a sample containing barium ions?

A
  • thick white precipitate forms

Chemistry (11 decks)

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