CIA Demonstration: Natural Acid-Base Indicators (16.2.2)

Question 1

• A number of natural compounds can serve as pH indicators, including the flowers of Hydrangea macrophylla and the leaves of red cabbage.

Answer 1

• A number of natural compounds can serve as pH indicators, including the flowers of Hydrangea macrophylla and the leaves of red cabbage.

Question 2

• The color change in a red cabbage extract indicates whether a substance is a strong base, a weak base, neutral, a weak acid, or a strong acid.

Answer 2

• The color change in a red cabbage extract indicates whether a substance is a strong base, a weak base, neutral, a weak acid, or a strong acid.