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Flashcards in Chemical Analysis Deck (20)
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1
Q

test/result for solution with chloride ions

A

add dilute nitric acid and a few drops of silvernitrate –> white precipitate

2
Q

test/result for solution with bromide ions

A

add dilute nitric acid and a few drops of silvernitrate –> cream precipitate

3
Q

test/result for solution with iodide ions

A

add dilute nitric acid and a few drops of silvernitrate –> yellow precipitate

4
Q

test/result for solution with sulfate ions

A

add dilute hydrochloric acid and a few drops of barium chloride solution –> white precipitate

5
Q

test/result for solution with carbonate ions

A

add dilute hydrochloric acid or nitric acid –>solution turns cloudy in limewater

6
Q

test/result for solution with ammonium ions

A

add aqueous sodium hydroxide to the solid and warm the mixture , red damp litmus paper will turn blue

7
Q

test/result copper(ii) ions

A

add aqueous sodium hydroxide –> blue precipitate

8
Q

test/result iron(ii) ions

A

add aqueous sodium hydroxide –> green precipitat

9
Q

test/result iron(iii) ions

A

add aqueous sodium hydroxide –> brown precipitate

10
Q

test/result for oxygen

A

glowing splint –> relights in oxygen

11
Q

test/result for carbondioxide

A

limewater —> turns milky

12
Q

test/result for chlorine

A

damp blue litmus paper turns red, then white (bleaching)

13
Q

test/result for ammonia

A

damp red litmus paper turns blue

14
Q

test/result for Na+

A

flame test –>yellow/orange flame

15
Q

test/result for K+

A

flame test –>lilac flame

16
Q

test/result for Ca2+

A

flame test –>brick red flame

17
Q

test/result for Li+

A

flame test –>red

18
Q

test for hydrogen

A

mix with air and ignite/burns with a squeaky pop

19
Q

test for alkenes

A

turns brown bromine water colourless

20
Q

test for water

A

turns CoCl paper from blue to pink, or turns anhydrous CuSO4 from white to blue