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Chemistry 3 > Chemical Analysis > Flashcards

Chemical Analysis Flashcards

1
Q

How would you identify copper II using NaOH?

A

Solution turns blue

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2
Q

How would you identify Iron II using NaOH?

A

Dark green precipitate

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3
Q

How would you identify Iron III using NaOH?

A

Brown precipitate

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4
Q

How would you identify ammonium ions using NaOH?

A

Add NaOH and heat mixture. Vapour given off will turn damp red litmus paper blue

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5
Q

What colour flame does calcium give?

A

Brick red

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6
Q

What colour flame does potassium give?

A

Lilac

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7
Q

What colour flame does sodium give?

A

Yellow/ orange

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8
Q

What colour flame does copper II give?

A

Blue/ green

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9
Q

How would you test for iodide ions?

A

Add acidified silver nitrate, yellow precipitate

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10
Q

How would you test for bromide ions?

A

Add acidified silver nitrate, cream precipitate

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11
Q

How would you test for chloride ions?

A

Add acidified silver nitrate, white precipitate

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12
Q

What is the test and positive result for alcohols?

A

Acidified potassium dichromate turns green from orange

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13
Q

How do you test for sulphate ions?

A

Add acidified barium chloride and it gives a white precipitate

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14
Q

What is the test for carboxylic acids?

A

Produces a fizz with sodium carbonate

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15
Q

What is the test for carbonates?

A

Fizz with the addition of acid

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16
Q

How do you test for alkenes?

A

Add bromine water, decolourises

17
Q

What is the test for oxygen?

A

Relights a glowing splint

18
Q

What is the test for hydrogen?

A

Burns with a squeaky pop

19
Q

What is the test for carbon dioxide?

A

Limewater turns milky

20
Q

What is the test for ammonia?

A

Damp red litmus turns blue

Chemistry 3 (4 decks)

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