To test another item, use a clean cup and fresh indicator liquid. Repeat steps 4-6. In the table in the printable PDF, record the item, the color the liquid turns, and if it is an acid, a base, or ...

1. Dissolve 6.5g KOH (potassium hydroxide) in 1600mL water and add several drops of universal indicator. Place in 2000mL graduated cylinder.

Place beakers containing distilled water and universal indicator reference set on the overhead projector. Add universal indicator to the beakers of water. Add a small amount of each salt to a ...

A pH or acid-base indicator is a compound that changes color depending on the pH of the substance that is added to it. Acids and bases make pH indicators turn different colors. Two substances that ...

This educational film explores acid-base indicators and their color changes in response to acidity. It demonstrates how substances like tea, red cabbage, and litmus paper react when acids are ...

Discover how red cabbage can act as a natural pH indicator, revealing whether substances are acids or bases through beautiful color changes. pH is a measure that tells us how acidic or basic a ...