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GCSE Chemistry > C8 - Chemical Analysis > Flashcards

C8 - Chemical Analysis Flashcards

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1
Q

What is a Formulation

A

Complex mixture designed to be a useful product

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2
Q

Flame test for Lithium ions

A

Crimson flame

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3
Q

Flame test for Sodium ions

A

Yellow flame

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4
Q

Flame test for Potassium ions

A

Lilac flame

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5
Q

Flame test for Calcium ions

A

Orange-Red flame

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6
Q

Flame test for Copper ions

A

Green flame

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7
Q

How to do flame test

A

Sterilise platinum loop of wire win dilute HCl and burn in blue bunsen flame until no colour.

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8
Q

3 metals that form white precipitates when reacting with sodium hydroxide

A

Magnesium
Aluminium
Calcium

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9
Q

Copper ions reaction with sodium hydroxide

A

Blue precipitate

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10
Q

Iron ions reaction with sodium hydroxide

A

Green precipitate

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11
Q

Sodium ions reaction with sodium hydroxide

A

Brown precipitate

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12
Q

3 positives to instrumental methods

A

Rapid
Sensitive
Accurate

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13
Q

Instrumental method for flame test

A

Flame emission spectroscopy

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14
Q

Test for Hydrogen

A

Burning splint burns rapidly and creates squeaky pop

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15
Q

Test for Oxygen

A

Burning splint relights

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16
Q

Test for Carbon Dioxide

A

Carbon Dioxide bubbling in Limewater (Calcium Hydroxide) turns cloudy

17
Q

Test for Chlorine

A

Damp litmus paper bleaches and turns white

18
Q

Test for Carbonates

A

Sample with dilute acid in test tube connected to limewater turns cloudy

19
Q

Test for Sulfates

A

Drops of Dilute hydrochloric acid and barium chloride in sample makes white precipitate barium sulfate

20
Q

Test for Halides

A

Drops of dilute nitric acid and silver nitrate forms:
Chloride - white precipitate silver chloride
Bromide - cream precipitate silver bromide
Iodide - Yellow precipitate silver Iodide

GCSE Chemistry (11 decks)

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