Molecules on an acid–base indicator react chemically with ions in a solution, causing the indicator to change color. Which ions in the solution cause this reaction?

Question

gebooors · Answer

Concentrations of oksonium or hydroxide ions
Have no influence to color of solution.

Acid-base indicators are weak bases or acids.
acid-base indicator molecule may have
Structural change when it accepts or donors a proton.

That makes a molecule to absorb wavelengths of visible light
When pH changes.