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C8 Acids, Bases and Salts > Qualitative analysis > Flashcards

Qualitative analysis Flashcards

1
Q

How do you test for anions in carbonate

A

Add dilute acid. Effervescence, carbon dioxide produced

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2
Q

Test for anion in chloride (in solution]

A

Acidify with dilute nitric acid, then add aqueous silver nitrate. White ppt formed.

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3
Q

Test for anion in bromide [in solution]

A

Acidify with dilute nitric acid, then add aqueous silver nitrate. Cream ppt formed

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4
Q

Test for anion in nitrate

A

Add aqueous sodium hydroxide then aluminum foil; warm carefully. Ammonia produced.

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5
Q

Test for anion in sulfate

A

Acidify, then add aqueous barium nitrate. White ppt formed.

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6
Q

Test for aqueous cations in ammonium.
1. Effect of aqueous sodium hydroxide.
2. Effect of aqueous ammonia

A
  1. Ammonia produced on warming
  2. -
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7
Q

Test for aqueous cations in calcium.
1. Effect of aqueous sodium hydroxide.
2. Effect of aqueous ammonia

A
  1. White ppt, insoluble in excess
  2. No ppt. or very slight white ppt.
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8
Q

Test for aqueous cations in copper (II).
1. Effect of aqueous sodium hydroxide.
2. Effect of aqueous ammonia

A
  1. Light blue ppt, insoluble in excess
  2. Light blue ppt, soluble in excess, giving a dark blue solution
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9
Q

Test for aqueous cations in iron (II).
1. Effect of aqueous sodium hydroxide.
2. Effect of aqueous ammonia

A
  1. Green ppt, insoluble in excess
  2. Green ppt, insoluble in excess
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10
Q

Test for aqueous cations in iron (III).
1. Effect of aqueous sodium hydroxide.
2. Effect of aqueous ammonia

A

1.red-brown ppt, insoluble in excess
2.red-brown ppt, insoluble in excess

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11
Q

Test for aqueous cations in zinc.
1. Effect of aqueous sodium hydroxide.
2. Effect of aqueous ammonia

A

1.White ppt, soluble in excess, giving a colorless solution.
2. White ppt, soluble in excess, giving a colorless solution.

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12
Q

Test for gases. Ammonia. Test and test results:

A

Turns damp red litmus paper blue

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13
Q

Test for gases. Carbon dioxide . Test and test results:

A

Turns limewater milky

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14
Q

Test for gases. Chlorine. Test and test results:

A

Bleaches damp litmus paper

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15
Q

Test for gases. Hydrogen. Test and test results:

A

‘Pops’ with a lighted splint

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16
Q

Test for gases. Oxygen. Test and test results:

A

Relights a glowing splint

17
Q

Flame tests for metal ions. Lithium. Flame color:

A

Red

18
Q

Flame tests for metal ions. Sodium. Flame color:

A

Yellow

19
Q

Flame tests for metal ions. Potassium. Flame color:

A

Lilac

20
Q

Flame tests for metal ions. Copper (II). Flame color:

A

Blue-green

C8 Acids, Bases and Salts (2 decks)

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