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Litmus paper, phenolphthalein, and red cabbage juice are substances that change color in response to changes in acidity or basicity. Litmus paper turns red in acid and blue in base, phenolphthalein is colorless in acid and pink in base, and red cabbage juice turns red in acid and blue in base.
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Why do you use litmus paper to tell the difference between acid and base?
You use litmus paper to tell the difference between acid and base because it is convenient. It is easy to transport and store, it is easy to use and it is easy to the the result, which is a clear change in color.
What does a color change in an acid-base titration mean?
A color change in an acid-base titration indicates the endpoint of the reaction, where the amount of acid or base has been completely neutralized. This change is often detected using a pH indicator that changes color based on the pH of the solution. The color change helps in determining the equivalence point of the titration.
What colour does hydrochloric acid turn phenolphthalein?
It should be clear. Phenolphthalein doesn't change color in the presence of an acid, only a base.
What two substances are formed when an acid and a base undergo neutralization?
When an acid and a base undergo neutralization, the two substances formed are water and a salt.
What is recreation of indicator with acid and base?
Recreation of an indicator using an acid and a base involves mixing a colorless or faintly colored acid-base indicator with an acid to make the solution acidic (and change color) and then adding a base to neutralize the acid and return the indicator to its original color. This process demonstrates the reversible nature of acid-base indicators and how they can be used to visually indicate the presence of acids or bases in a solution.
What are acid base indicators?
These indicators are substances which change their color depending upon acidity/basicity of the solution.
What will change color in the presence of an acid or a base?
pH indicators change the color depending upon acidity or basicity.
what acid-base change color when in contact with an acid or a base?
pH indicators change the color in contact with acids or bases.
What are substances which exhibit a specific color in the presence of acid or base?
an indicator
What is acid base indicator?
An acid base indicator is a chemical substance that has the ability to change color depending on the pH.
What are acid-base indicators?
Acid-base indicators, are chemicals that change color in response to acidic or basic conditions.
Why do you use litmus paper to tell the difference between acid and base?
You use litmus paper to tell the difference between acid and base because it is convenient. It is easy to transport and store, it is easy to use and it is easy to the the result, which is a clear change in color.
What does a color change in an acid-base titration mean?
A color change in an acid-base titration indicates the endpoint of the reaction, where the amount of acid or base has been completely neutralized. This change is often detected using a pH indicator that changes color based on the pH of the solution. The color change helps in determining the equivalence point of the titration.
What is acid-base indicators?
These indicators change the color depending on the pH of the solution.
What colour does hydrochloric acid turn phenolphthalein?
It should be clear. Phenolphthalein doesn't change color in the presence of an acid, only a base.
Why the litmus paper change in color when put it into acid base?
Red color in acidic solutions and blue color in basic solutions.
What two substances are formed when an acid and a base undergo neutralization?
When an acid and a base undergo neutralization, the two substances formed are water and a salt.
