What property of a solution causes an acid–base indicator to change to different colors?

It can be used to predict atomic behavior in most circumstances.
It has been perfected and will never be changed in the future.
It is only accepted by a small fraction of scientists.
It is only useful in very specific circumstances.

Question

visionspaul visionspaul

23-05-2017
Chemistry

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What property of a solution causes an acid–base indicator to change to different colors?

It can be used to predict atomic behavior in most circumstances.
It has been perfected and will never be changed in the future.
It is only accepted by a small fraction of scientists.
It is only useful in very specific circumstances.

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adoreekorie adoreekorie · Answer 1 · 2017-05-23T20:09:14+02:00

The most common method to get an idea about the pH of solution is to use an acid base indicator. An indicator is a large organic molecule that works somewhat like a " color dye". Whereas most dyes do not change color with the amount of acid or base present, there are many molecules, known as acid - base indicators , which do respond to a change in the hydrogen ion concentration. Most of the indicators are themselves weak acids.

enyo enyo · Answer 2 · 2019-07-31T13:10:07+02:00

Answer:

Different concentrations of hydronium ion or the nature of the solution (acidic or basic) causes an acid-base indicator to change to different colors.

Explanation:

An acid base indicator is a weak organic acid or base. It shows different colors in acidic and basic medium. So, if a solution is acidic the indicator exhibits one color and if it is basic it shows a different color. So depending on the solution pH or the concentration of hydronium ion they change their color.