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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.
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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.
What is Fajan's method of argentometric titration?
Fajan's method of argentometric titration involves the use of potassium chromate as an indicator to detect the end point of a titration between silver ions and chloride ions. The indicator changes color from yellow to red when all the chloride ions have reacted with the silver ions, marking the end point of the titration.
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 silver nitrate is used in argentometric titration?
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.
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 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.
What is Fajan's method of argentometric titration?
Fajan's method of argentometric titration involves the use of potassium chromate as an indicator to detect the end point of a titration between silver ions and chloride ions. The indicator changes color from yellow to red when all the chloride ions have reacted with the silver ions, marking the end point of the titration.
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 silver nitrate is used in argentometric titration?
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.
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.
Is potentiometric titration superior to conductometric titration?
This is totally depending to WHAT KIND of analysis you are referring to. They could be of equal or of totally different value for one or another compound. Potentiometry is based on acid/base reactions and pH change at equivalence point, while conductometry is based in change of the (conductivity) behaviour of ions, also applicable to redox, precipitometric (argentometric) AND acid/base reactions.
Why is argentrometric method called as a mohr method?
The argentometric method is called the Mohr method because it was developed by the German chemist Karl Friedrich Mohr in the 19th century. This titration technique involves the use of silver nitrate as a titrant and is specifically used for the determination of chloride ions in a solution. The method is characterized by the formation of a colored precipitate (silver chromate) at the endpoint, which occurs when all chloride ions have reacted, indicating the completion of the titration.
How many tipes of titration?
There are various types of titration. It is dependent on the conditions used and the reactants and desired products. Some of them are acid-base titration, redox titration, colorimetric titration and thermometric titration.
What is over-titration?
Over-titration refers to the process of adding too much titrant during a titration, resulting in an endpoint that goes beyond the equivalence point. This can lead to inaccurate results as the excess titrant can skew the calculations.
What is the scout titration?
The scout titration is a preliminary titration carried out to estimate the approximate endpoint in a titration experiment before performing the actual titration. It helps in determining the approximate volume of titrant required for the main titration to avoid overshooting the endpoint.
What is the difference between iodometric titration and iodimetric titration?
Iodometric titration involves the titration of iodine with a reducing agent, while iodimetric titration involves the titration of iodide with an oxidizing agent. In iodometric titration, iodine is detected by a starch indicator to determine the end point, while in iodimetric titration, iodide ion concentration is determined by titration with a standard solution of an oxidizing agent.
What is double titration?
Double titration is a titration method used to determine the concentration of a solution by performing two successive titrations. In the first titration, a known concentration of a standard solution is used to titrate the unknown solution. In the second titration, a different standard solution is titrated with the excess volume from the first titration to determine its concentration.
