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Silver nitrate is used in argentometric titrations because it forms insoluble silver chloride, silver bromide, or silver iodide precipitates with halide ions present in the solution. The endpoint of the titration is reached when all the halide ions have reacted with silver ions, forming a visible precipitate. This allows for precise determination of the halide ion concentration in the sample.
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What do you mean by argentometric titration?
Argentometric comes from the Latin word ''argentum''which means silver. Argentometric titrations are precipitation titrations based on the use of silver nitrate as the precipitating agent.For example in titrations of halide ions,divalent anions,mercaptans(Ag2S),Fatty acids etc. By Lukato Simon Makerere University Kampala,Uganda Tel.0782528726. Argentometric comes from the Latin word ''argentum''which means silver. Argentometric titrations are precipitation titrations based on the use of silver nitrate as the precipitating agent.For example in titrations of halide ions,divalent anions,mercaptans(Ag2S),Fatty acids etc. By Lukato Simon Makerere University Kampala,Uganda Tel.0782528726.
Why pottasium chromate is used as indicator in argentometric titration?
Potassium chromate is used as an indicator in argentometric titrations because it forms a red precipitate (silver chromate) in the presence of excess silver ions. This color change signals the end point of the titration, where all the chloride ions have reacted with silver ions. This makes it easy to visually detect when the reaction is complete.
Why do we carryout blank titration in argentometric titration?
Blank titration is carried out in argentometric titration to account for any impurities or contaminants present in the reagents used. By measuring the volume of titrant required to reach the endpoint in the blank titration, this value can be subtracted from the volume used in the actual titration to determine the accurate amount of titrant required to react with the analyte.
Why must silver nitrate be used in excess in precipitation titration?
Silver nitrate must be used in excess in precipitation titration because it ensures that all the chloride ions in the solution have reacted with the silver ions to form a precipitate (silver chloride). This ensures the endpoint of the titration is reached accurately, allowing for a precise determination of the concentration of chloride ions in the solution.
Why do not you use iodide salts in argentometric titration?
Iodide salts are not used in argentometric titrations because silver iodide is highly insoluble in water compared to other silver halides. This results in poor endpoint detection and low accuracy in the titration process. Additionally, the reaction between iodide ions and silver ions is reversible, making it challenging to achieve a clear and sharp endpoint.
What do you mean by argentometric titration?
Argentometric comes from the Latin word ''argentum''which means silver. Argentometric titrations are precipitation titrations based on the use of silver nitrate as the precipitating agent.For example in titrations of halide ions,divalent anions,mercaptans(Ag2S),Fatty acids etc. By Lukato Simon Makerere University Kampala,Uganda Tel.0782528726. Argentometric comes from the Latin word ''argentum''which means silver. Argentometric titrations are precipitation titrations based on the use of silver nitrate as the precipitating agent.For example in titrations of halide ions,divalent anions,mercaptans(Ag2S),Fatty acids etc. By Lukato Simon Makerere University Kampala,Uganda Tel.0782528726.
Why pottasium chromate is used as indicator in argentometric titration?
Potassium chromate is used as an indicator in argentometric titrations because it forms a red precipitate (silver chromate) in the presence of excess silver ions. This color change signals the end point of the titration, where all the chloride ions have reacted with silver ions. This makes it easy to visually detect when the reaction is complete.
Why do we carryout blank titration in argentometric titration?
Blank titration is carried out in argentometric titration to account for any impurities or contaminants present in the reagents used. By measuring the volume of titrant required to reach the endpoint in the blank titration, this value can be subtracted from the volume used in the actual titration to determine the accurate amount of titrant required to react with the analyte.
Why must silver nitrate be used in excess in precipitation titration?
Silver nitrate must be used in excess in precipitation titration because it ensures that all the chloride ions in the solution have reacted with the silver ions to form a precipitate (silver chloride). This ensures the endpoint of the titration is reached accurately, allowing for a precise determination of the concentration of chloride ions in the solution.
What is the process whereby silver nitrate is used as a precipitating reagent in precipitation titration called?
Argenmetric process
Theory of titration of silver nitrate solution using precipitation and adsorption indicators?
In the titration of silver nitrate solution, a precipitation indicator like chloride ion is used to detect the endpoint through the formation of a white precipitate (AgCl). An adsorption indicator like chromate ion can also be used, where the color change of the adsorbed chromate ion on silver chloride indicates the endpoint. Both indicators are effective in detecting the equivalence point in silver nitrate titrations.
Why do not you use iodide salts in argentometric titration?
Iodide salts are not used in argentometric titrations because silver iodide is highly insoluble in water compared to other silver halides. This results in poor endpoint detection and low accuracy in the titration process. Additionally, the reaction between iodide ions and silver ions is reversible, making it challenging to achieve a clear and sharp endpoint.
Why is potassium chromate indicater used in silver nitrate titration determining in water chloride?
At the end point, so after all Cl- has reacted with Ag+, a brown-red precipitate of silver chromate (Ag2CrO4), is formed. (Argentometric indicator)Description:The solubility of silver chromate is slightly higher than that of silver chloride. So, in a mixture of both ions silver chloride will be formed. Only when no chloride is left silver chromate will be formed and precipitated out.Prior to the endpoint the solution has a milky lemon yellow appearance, due to the color of the chromate ion and the precipitate of silver chloride already formed.When approaching the endpoint, additions of silver nitrate lead to steadily slower disappearing red colorations. When the red brownish color remains (with grayish spots of silver chloride in it) the endpoint of titration is reached. (wikipedia)
Why agno3 titration?
AgNO3 titration is commonly used to determine the concentration of chloride ions in a solution. Silver nitrate (AgNO3) reacts with chloride ions to form a white precipitate of silver chloride. The amount of AgNO3 required to completely precipitate all the chloride ions can be used to calculate the concentration of chloride in the solution.
What is argentimetric titration?
In analytical chemistry, argentometry is a type of titration involving the silver(I) ion. Typically, it is used to determine the amount of chloride present in a sample. The sample solution is titrated against a solution of silver nitrate of known concentration. Chloride ions react with silver(I) ions to give the insoluble silver chloride:Cl− (aq) + Ag+ (aq) → AgCl (s) (Ksp = 1.70 × 10−10)
Why is not possible to determine iodide by mohr titration?
Iodide cannot be determined by Mohr titration because it does not form a precipitate with silver nitrate. Mohr titration relies on the formation of a colored precipitate to indicate the end point, which is not observed in the case of iodide ions. Other methods, such as iodometric titration or spectrophotometry, are used to determine iodide ions quantitatively.
Why is silver nitrate not used in electroplating silver?
Silver nitrate is a compound used for making silver salts, not for electroplating silver. In electroplating, a pure silver metal source is needed as the source of silver ions, not silver nitrate. This is because the ions in silver nitrate are not stable in solution for electroplating.
