Indicator is a chemical compound that is added in small amounts to a solution so that the pH (acidity or basicity) of the solution can be determined visually.
The most appropriate indicator for a strong acid/strong base titration is phenolphthalein.
Phenolphthalein is commonly used as the indicator for the titration of a weak acid and a strong base. It changes color from colorless to pink at the equivalence point of the titration when the weak acid is completely neutralized by the strong base.
The term for the stage in an acid-base titration when the indicator changes color is called the endpoint. It signifies that the stoichiometric equivalence point has been reached, where the acid and base have reacted completely.
The key criterion for selecting an indicator for an acid-base titration is that the indicator's color change should occur close to the equivalence point of the titration. This ensures that the indicator accurately signals when the reaction is complete. The pH range over which the indicator changes color should match the pH range around the equivalence point.
Phenolphtalein is an indicator used to find the endpoint of a reaction (specifically an acid-base reaction). It has a pH range of 8.3 to 10.0 which means it can be used for a strong acid to strong base titration or a weak base to strong acid titration. Phenolphthalein is clear when it is in the presence of acid and pink when it is in the presence of a base.
The most appropriate indicator for a strong acid/strong base titration is phenolphthalein.
Phenolphthalein is commonly used as the indicator for the titration of a weak acid and a strong base. It changes color from colorless to pink at the equivalence point of the titration when the weak acid is completely neutralized by the strong base.
Yes - it's used in acid-base titration.
The term for the stage in an acid-base titration when the indicator changes color is called the endpoint. It signifies that the stoichiometric equivalence point has been reached, where the acid and base have reacted completely.
The key criterion for selecting an indicator for an acid-base titration is that the indicator's color change should occur close to the equivalence point of the titration. This ensures that the indicator accurately signals when the reaction is complete. The pH range over which the indicator changes color should match the pH range around the equivalence point.
Phenolphtalein is an indicator used to find the endpoint of a reaction (specifically an acid-base reaction). It has a pH range of 8.3 to 10.0 which means it can be used for a strong acid to strong base titration or a weak base to strong acid titration. Phenolphthalein is clear when it is in the presence of acid and pink when it is in the presence of a base.
The end point in an acid-base titration is the point at which an indicator changes color and signifies that equivalence has been reached between the acid and base being titrated. This is when the amount of acid and base are in stoichiometric proportions.
Phenolphthalein is used as an indicator during the titration of tartaric acid because the pH at which phenolphthalein changes color (around pH 8.2-10) is close to the equivalence point of the titration of tartaric acid with a strong base like NaOH. This makes it a suitable indicator for detecting the endpoint of the titration when the acid has been completely neutralized by the base.
For the titration of a strong acid, the indicator typically used is phenolphthalein. Phenolphthalein changes color in the pH range of 8.2 to 10, which is suitable for titrating a strong acid with a strong base to determine the equivalence point.
Phenolphthalein is a suitable indicator for the titration of oxalic acid with sodium hydroxide. It changes color from colorless to pink at the endpoint of the titration when the acid has been completely neutralized.
The choice of colorimetric indicator in an acid-base titration is crucial because it must change color at the equivalence point, where the moles of acid and base are stoichiometrically equal. The indicator should have a pH range close to the pH at the equivalence point to ensure accurate endpoint detection. Using the right indicator helps to determine the endpoint precisely and enhances the accuracy of the titration results.
Phenolphthalein is used as an indicator in acid-base titrations because it changes color at a specific pH range. In an acid-base titration, phenolphthalein changes from colorless to pink when the solution reaches a pH around 8.2-10, indicating the endpoint of the titration. This allows for a visual indication of when the reaction is complete.