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Feature: Acid Tests (3/20)

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ACID BASE INDICATOR<br /> Bromothymol Blue<br /> Addition of NH4OH to solution raises pH above 7 and indicator turns blue. Addition of HCl to solution lowers pH below 7 and indicator turns yellow.

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ACID BASE INDICATOR
Bromothymol Blue
Addition of NH4OH to solution raises pH above 7 and indicator turns blue. Addition of HCl to solution lowers pH below 7 and indicator turns yellow.

Copyright:© 1993 Richard Megna - Fundamental Photographs

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