Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry > Chemical Analysis > Flashcards

Chemical Analysis Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Chemistry flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
1
Q

How to test for ammonia

A

hold damp red litmus paper over heated test tube (with ammonium solution inside), if the litmus turns blue you have ammonia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How to test for Carbon Dioxide

A

bubble gas through limewater, if its carbon dioxide water will turn cloudy white

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How to test for chlorine?

A

Hold damp blue litmus paper of test tube with gas, if gas is chlorine it will turn red and then blue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How to test for Hydrogen?

A

Put a burning splint in test tube and a squeaky pop should be heard

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How to test for Oxygen?

A

Put glowing splint in test tube, if gas is oxygen it should relight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What must you do before every flame test?

A

Dip nichrome wire in dilute acid to prevent contamination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What colour does lithium turn?

A

Red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What colour does Sodium turn?

A

yellow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What colour does Potassium turn?

A

lilac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What colour does Calcium turn?

A

orange-red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What colour does Copper turn?

A

Blue-green

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What must you add to test for cations?

A

NaOH (sodium hydroxide)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

When NaOH added what precipitate is formed for Copper 2+?

A

Light blue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When NaOH added what precipitate is formed for Iron 2+?

A

green

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

When NaOH added what precipitate is formed for Iron 3+?

A

Brown

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When NaOH added what is formed for Ammonium?

A

Ammonia Gas is formed

17
Q

What is the test for carbonate ion?

A

A bubble gas through limewater, should turn cloudy white, white precipitate formed

18
Q

What is the test for Halide ion?

A

Add nitric acid, add silver nitrate, silver halide precipitate forms. Chloride - white, Bromide - cream, Iodide - Yellow

19
Q

What is the test for Sulphate Ions?

A

Add hydrochloric acid, add barium chloride, white precipitate should form

20
Q

How to test for water?

A

Chemical: Anhydrous copper(II) sulphate turns from white to blue
Physical: Check boiling point, should be 100˚C

Chemistry (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions