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Chemistry > Qualitative Analysis > Flashcards

Qualitative Analysis Flashcards

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1
Q

Carbonate

A

Test: add dilute acid
Result: effervescence, CO2 produced

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2
Q

Chloride

A

Test: acidify with dilute nitric acid, then add aqueous silver nitrate
Result: white ppt.

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3
Q

Bromide

A

Test: acidify with dilute nitric acid, then add aqueous silver nitrate
Result: cream ppt.

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4
Q

Iodide

A

Test: acidify with dilute nitric acid, then add aqueous silver nitrate
Result: yellow ppt.

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5
Q

Nitrate

A

Test: add aqueous sodium hydroxide, then aluminum foil, then warm carefully
Result: ammonia produced

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6
Q

Sulfate

A

Test: acidify, then add aqueous barium nitrate
Result: white ppt.

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7
Q

Sulfite

A

Test: add dilute HCl, warm gently and test for the presence of sulfur dioxide
Result: sulfur dioxide produced will turn acidified aqueous potassium manganate (VII) from purple to colorless

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8
Q

Aluminum

A

Effect of aqueous sodium hydroxide: white ppt, soluble in excess, giving a colorless solution
Effect of aqueous ammonia: white ppt, insoluble in excess

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9
Q

Ammonium

A

Effect of aqueous sodium hydroxide: ammonia produced on warming

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10
Q

Calcium

A

Effect of aqueous sodium hydroxide: white ppt, insoluble in excess
Effect of aqueous ammonia: no ppt, or very slight white ppt.

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11
Q

Chromium (III)

A

Effect of aqueous sodium hydroxide: green ppt, soluble in excess
Effect of aqueous ammonia: grey-green ppt, insoluble in excess

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12
Q

Copper (II)

A

Effect of aqueous sodium hydroxide: light blue ppt, insoluble in excess
Effect of aqueous ammonia: light blue ppt, soluble in excess, giving a dark blue solution

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13
Q

Iron (II)

A

Effect of aqueous sodium hydroxide: green ppt, insoluble in excess
Effect of aqueous ammonia: green ppt, insoluble in excess

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14
Q

Iron (III)

A

Effect of aqueous sodium hydroxide: red-brown ppt, insoluble in excess
Effect of aqueous ammonia: red-brown ppt, insoluble in excess

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15
Q

Zinc

A

Effect of aqueous sodium hydroxide: white ppt, soluble in excess, giving a colorless solution
Effect of aqueous ammonia: white ppt, soluble in excess, giving colorless solution

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16
Q

Ammonia gas

A

Result: turns damp red litmus paper blue

17
Q

Carbon dioxide

A

Result: turns limewater milky

18
Q

Chlorine gas

A

Result: bleaches damp litmus paper

19
Q

Hydrogen

A

Result: ‘pops’ with a lighted splint

20
Q

Oxygen

A

Result: Relights a glowing splint

21
Q

Sulfur dioxide

A

Result: turns acidified aqueous potassium manganate (VII) from purple to colorless

22
Q

Lithium

A

Flame: Red

23
Q

Sodium

A

Flame: Yellow

24
Q

Potassium

A

Flame: Lilac

25
Q

Copper (II) metal

A

Flame: Blue-green

Chemistry (2 decks)

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