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In a redox titration, an indicator is not used because the endpoint is determined by a change in the oxidation state of the analyte or titrant, rather than a change in pH or color. The endpoint is typically detected using a potentiometric method, such as a redox electrode, which directly measures the change in voltage.
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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.
What is the theory of the redox titration?
Redox titration is a type of titration based on a redox reaction between the analyte and titrant. The theory behind redox titration is that the number of electrons transferred in the reaction is used to determine the amount of substance being analyzed. This is typically done by monitoring the change in concentration of a redox indicator or analyzing the endpoint using a potentiometric method.
What is the function of starch solution in the redox titration?
Starch solution is used as an indicator in redox titrations to detect the endpoint of the titration. It forms a complex with triiodide ions to produce a blue-black color when excess iodine is present, indicating that the reaction has reached completion. This helps in determining the equivalence point of the titration.
What is the use of ferroin indicator in redox titration of Mohr's salt?
Ferroin indicator is used in the redox titration of Mohr's salt as it changes color when the Fe2+ ions are completely oxidized to Fe3+ ions. This color change helps in determining the end point of the titration, where all the Mohr's salt has been oxidized and no more Fe2+ ions are present.
What is redox titration?
Redox titration is a type of titration that involves a redox reaction between the analyte and titrant. In this titration, the endpoint is determined by monitoring the change in oxidation state of the analyte. It is commonly used to determine the concentration of oxidizing or reducing agents in a sample.
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.
What is the theory of the redox titration?
Redox titration is a type of titration based on a redox reaction between the analyte and titrant. The theory behind redox titration is that the number of electrons transferred in the reaction is used to determine the amount of substance being analyzed. This is typically done by monitoring the change in concentration of a redox indicator or analyzing the endpoint using a potentiometric method.
What is the function of starch solution in the redox titration?
Starch solution is used as an indicator in redox titrations to detect the endpoint of the titration. It forms a complex with triiodide ions to produce a blue-black color when excess iodine is present, indicating that the reaction has reached completion. This helps in determining the equivalence point of the titration.
What is the use of ferroin indicator in redox titration of Mohr's salt?
Ferroin indicator is used in the redox titration of Mohr's salt as it changes color when the Fe2+ ions are completely oxidized to Fe3+ ions. This color change helps in determining the end point of the titration, where all the Mohr's salt has been oxidized and no more Fe2+ ions are present.
What is redox titration?
Redox titration is a type of titration that involves a redox reaction between the analyte and titrant. In this titration, the endpoint is determined by monitoring the change in oxidation state of the analyte. It is commonly used to determine the concentration of oxidizing or reducing agents in a sample.
The purpose of an indicator in a titration experiment?
An indicator is used in a titration experiment to signal the endpoint of the reaction. It changes color when the reaction is complete, helping to determine the amount of titrant needed to reach the equivalence point. This visual indication allows for accurate measurements and precise calculations in the titration process.
Difference between acid base titration and redox titration?
In acid-base titration, the reaction involves the transfer of protons between the acid and base, with the endpoint usually determined by a pH indicator. Redox titration, on the other hand, involves the transfer of electrons between the oxidizing and reducing agents, with the endpoint typically determined by a change in color or potential. Acid-base titrations are used to determine the concentration of acids or bases, while redox titrations are to determine the concentration of oxidizing or reducing agents.
Why are there blue precipitate at the end of redox titration?
The blue precipitate may indicate the presence of excess indicator in the solution. In redox titrations, the indicator changes color when the reaction reaches its endpoint. If too much indicator is added, it can form a colored precipitate due to its reaction with the titrant, which can obscure the endpoint of the titration. It is important to carefully control the amount of indicator to avoid this issue.
Is iodometric titration and redox titration is same?
Iodometric titration is a type of redox titration where iodine is used as the titrant. Redox titration is a broader category that encompasses any titration based on a redox reaction, not necessarily involving iodine. So while iodometric titration is a type of redox titration, not all redox titrations involve iodine.
What type of indicator is used during potassium permanganate titration?
Potassium permanganate (KMnO4) titration is typically used as a redox indicator. The endpoint is indicated by a color change from pink to colorless or clear.
Why thiosulphate titration is called as redox titration?
Thiosulfate titration is called a redox titration because it involves a redox reaction between the thiosulfate (reducing agent) and the analyte (oxidizing agent). During the titration, the analyte oxidizes the thiosulfate while being reduced itself, resulting in a color change indicator that signals the equivalence point. This redox reaction is at the core of the titration process.
How many tipes of titration?
There are several types of titration based on the nature of the reaction being examined, including acid-base titration, redox titration, complexometric titration, and precipitation titration. Each type of titration is used to determine the concentration of a specific analyte in a sample.
