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Product Information

Aligned with AP Chemistry Lab #11


Acid Base (pH) indicators are those substances which change in color when they come in contact with an acidic or basic environment. Usually, these substances are used as dissolved substances, like phenolphthalein and bromothymol blue. Test papers and litmus papers are used to measure pH, because of their change in color when immersed in acidic or basic liquids. Many flowers, fruits, and vegetables also contain chemical substances that change color in solutions of different pH. In this experiment, some of these indicators will be extracted. The pH at which the indicators change color can then be investigated. Includes materials for 15 setups.

Chemical Contents:
Hydrochloric acid
Sodium Hydroxide
2-propanol
Acetone

Additional Materials Required:
De-ionized water
Fruits
Vegetables
Flowers
Test tubes, 16X160 mm
Stirring rods
10-mL graduated cylinders
Micro titer plates
Zip lock bags
Disposable pipettes


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