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Page 1

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Acids and Alkali's
Indicators
- Litmus
- Phenolphthalein
- Methyl Orange
- Universal Indicator
Indicator Acid Neutral Alkaline
Universal Indicator Red Green Blue/Purple
Litmus Brick Red Blue Blue
Phenolphthalein Colourless Colourless Pink
Methyl Orange Red Orange Yellow

Acids are a source of Hydrogen ions, H+
Alkali's are a source of…

Page 2

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- 2 Soluble salts = Insoluble salt Acid + Metal/ Metal Oxide/ Carbonate = Soluble salt
made
Titration neutralisation
Use a pipette to measure out 25cm3 of alkali into a conical flask
Add a few drops of methyl orange it should turn yellow.
Fill a burette with acid to the…

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