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What is meant by External Indicator used in titration?
An external indicator in titration is a substance that is added in small amounts to the analyte solution during titration to signal the endpoint of the reaction. It changes color at or near the equivalence point, making it easier for the observer to detect when the reaction is complete. Common examples of external indicators include phenolphthalein and methyl orange.
Why in titration of kmno4 no indicator is used?
In the titration of KMnO4, no indicator is used because KMnO4 is a self-indicating titrant. It undergoes a color change from purple to colorless (or brown) at the endpoint of the titration, which makes it unnecessary to add an external indicator. The precise endpoint can be easily detected visually, making the use of an indicator redundant.
Why does an indicator require precision in the titration process?
Precision in the titration process is important for accurate determination of the end point. An indicator must change color very close to the equivalence point to provide a clear signal for the endpoint of the titration. If the indicator is not precise enough, it can lead to errors in determining the correct endpoint of the titration, affecting the accuracy of the results obtained.
Is the indicator generally added to the titrant or the analyte in a titration?
Analyte is the indicator that is generally added in titration.
What is the name for the point at which the indicator changes color in a titration?
The point at which the indicator changes color in a titration is called the endpoint.
What is meant by External Indicator used in titration?
An external indicator in titration is a substance that is added in small amounts to the analyte solution during titration to signal the endpoint of the reaction. It changes color at or near the equivalence point, making it easier for the observer to detect when the reaction is complete. Common examples of external indicators include phenolphthalein and methyl orange.
Why in titration of kmno4 no indicator is used?
In the titration of KMnO4, no indicator is used because KMnO4 is a self-indicating titrant. It undergoes a color change from purple to colorless (or brown) at the endpoint of the titration, which makes it unnecessary to add an external indicator. The precise endpoint can be easily detected visually, making the use of an indicator redundant.
Why does an indicator require precision in the titration process?
Precision in the titration process is important for accurate determination of the end point. An indicator must change color very close to the equivalence point to provide a clear signal for the endpoint of the titration. If the indicator is not precise enough, it can lead to errors in determining the correct endpoint of the titration, affecting the accuracy of the results obtained.
Is the indicator generally added to the titrant or analyte in a titration?
Analyte is the indicator that is generally added in titration.
Is the indicator generally added to the titrant or the analyte in titration?
Analyte is the indicator that is generally added in titration.
Is the indicator generally added to the titrant or the analyte in a titration?
Analyte is the indicator that is generally added in titration.
What is the name for the point at which the indicator changes color in a titration?
The point at which the indicator changes color in a titration is called the endpoint.
Why is the indicator not added to the titration flask at the begging of the iodomettic titration?
Adding the indicator at the beginning of the iodometric titration can react with the iodine present, which can lead to errors in the titration results. By adding the indicator after most of the iodine has reacted, it ensures that the endpoint is more accurate and reliable.
Why are external indicators used in titration of estimation of purity of alcohol?
because external indicators are weak acids or bases and alcohol itself being a weak acid will react with it if it is used in vessel with them..... hence the titration is done using external indicators....
How you select that which indicator should be used in any titration?
The selection of an indicator for a titration is based on the pH range over which the titration will occur. The indicator should have a color change that aligns with the pH at the equivalence point of the titration. Choosing an indicator with a pH range that encompasses the equivalence point will ensure accurate endpoint detection.
What is double indicator titration?
Double indicator titration is a type of titration method that involves the use of two different indicators to determine the endpoint of the reaction. The first indicator changes color near the starting pH of the titration, while the second indicator undergoes a distinct color change at or near the endpoint of the titration. This technique is commonly used in complexometric titrations to determine the concentrations of metal ions in a solution.
Why is no indicator needed in redox titration experiment?
No indicator is needed in redox titration because the endpoint of the titration is determined by a change in the appearance of the titrand. This change can be detected visually, such as a color change, indicating the completion of the reaction without the need for an indicator.
