An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

The strength of an acid or base affects the pH more significantly than the concentration of the acid or base. The strength of an acid or base is how likely it is to donate or accept a proton in an ...

An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

Neutralisation is the reaction of an acid with a base that results in the pH moving towards 7. It is a useful process that occurs in everyday life such as in the treatment of acid indigestion and ...

Students will be able to explain that if two substances cause turn a pH indicator different colors ... a color change can also be used as evidence that a chemical reaction has occurred. Students will ...

Repeat step 1 with ethanoic acid into a separate test-tube. Add 5 drops of Universal Indicator to each test-tube and record the pH, or use a pH meter to record the pH. You should find that ...

Red cabbage contains a chemical called anthocyanin. This pigment is a natural acid-base indicator. It is blue in neutral substances, like plain water. When an acid like lemon juice gets in the water, ...