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caption

Acid-base titration. Demonstration of an acid-base titration using the indicator phenolphthalein. An alkaline solution is in the flask with a few drops of the indicator added to give a purple colour. Acid is slowly added from the burette above. When the acid has neutralised the alkali in the solution, the indicator turns colorless. The amount of acid needed to neutralise the alkali will allow the concentration of one of the solutions to be determined provided that the other's strength is already known.

headline Science Source General Science

created date 2010-02-13

credit EAST NEWS

source Science Source

byline Science Source

original transmission reference 2y9521

weight 3,33MB

size 30cm x 44cm by 300dpi

keywords - Show

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