Common titration indicators and facts about them Flashcards Preview

A Level Chemistry > Common titration indicators and facts about them > Flashcards

Flashcards in Common titration indicators and facts about them Deck (20)
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1

Methyl orange - colour in acid

Red

2

Methyl orange - colour in alkali

Yellow

3

Methyl orange - neutralisation colour

Orange

4

Methyl orange - pH at end point

4.3

5

Phenolphthalein - colour in acid

Colourless

6

Phenolphthalein - colour in alkali

Pink

7

Phenolphthalein - neutralisation colour

Faint pink

8

Phenolphthalein - pH at end point

9.1

9

Bromocresol green - colour in acid

Yellow

10

Bromocresol green - colour in alkali

Blue

11

Bromocresol green - neutralisation colour

Green

12

Bromocresol green - pH at end point

4.6

13

Congo red - colour in acid

Blue

14

Congo red - colour in alkali

Red

15

Congo red - neutralisation colour

Purple

16

Congo red - pH at end point

4.0

17

Thymolphthalein - colour in acid

Colourless

18

Thymolphthalein - colour in alkali

Blue

19

Thymolphthalein - neutralisation colour

Faint blue

20

Thymolphthalein - pH at end point

10.0