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What is the purpose of adding nitrobenzene in volhard titration?
Nitrobenzene is added in volhard titration as an indicator to detect the endpoint of the titration between chloride ions and silver ions. It forms a red-brown complex with excess silver ions which marks the end point of the titration.
Why is an acidic titration medium a requirement of the vol hard?
An acidic titration medium is required in a Volhard method for chloride determination because it prevents the precipitation of silver chloride as a solid. Keeping the solution acidic ensures that the silver chloride formed during the titration remains in solution as AgCl^- ions, allowing for accurate measurement of the endpoint.
Why nitric acid is used in volhard method?
Nitric acid is used in the Volhard method to oxidize Fe(II) to Fe(III) in order to prevent interference in the titration of chloride ions with silver nitrate. By converting Fe(II) to Fe(III), nitric acid ensures accurate and precise results in the determination of chloride content.
Why is back titration required in the volhard method?
This method uses a back titration with potassium thiocyanate to determine the concentration of chloride ions in a solution.Before the titration an excess volume of a standardized silver nitrate solution is added to the solution containing chloride ions, forming a precipitate of silver chloride (AgCl). The term 'excess' is used as the moles of silver nitrate added are known to exceed the moles of sodium chloride present in the sample so that all the chloride ions present will react.Ag+ + Cl- AgCl(s) (Ksp = 1.70 × 10−10)Excess WhiteExcess of Ag+ is back titrated with SCN-.
What is the purpose of a titration experiment?
The purpose of a titration experiment is to determine the concentration of a substance in a solution by reacting it with a solution of known concentration. This is achieved by carefully adding the titrant to the analyte until the reaction reaches a neutral point, known as the equivalence point. Titration is commonly used in chemistry to quantify acids, bases, and other substances in a sample.
What is the purpose of adding nitrobenzene in volhard titration?
Nitrobenzene is added in volhard titration as an indicator to detect the endpoint of the titration between chloride ions and silver ions. It forms a red-brown complex with excess silver ions which marks the end point of the titration.
Why is an acidic titration medium a requirement of the vol hard?
An acidic titration medium is required in a Volhard method for chloride determination because it prevents the precipitation of silver chloride as a solid. Keeping the solution acidic ensures that the silver chloride formed during the titration remains in solution as AgCl^- ions, allowing for accurate measurement of the endpoint.
When was Franz Volhard born?
Franz Volhard was born in 1872.
When did Franz Volhard die?
Franz Volhard died in 1950.
Why nitric acid is used in volhard method?
Nitric acid is used in the Volhard method to oxidize Fe(II) to Fe(III) in order to prevent interference in the titration of chloride ions with silver nitrate. By converting Fe(II) to Fe(III), nitric acid ensures accurate and precise results in the determination of chloride content.
What is the difference between volhard and mohr methods?
The Volhard method is a titration method used to determine the concentration of halide ions in a solution using silver nitrate and potassium chromate as indicators. The Mohr method, on the other hand, is also a titration method used to determine the chloride ions concentration in a solution using silver nitrate and potassium chromate indicators. The key difference lies in the end point detection: Volhard method involves the use of a ferric alum indicator that forms a red-brown precipitate, while the Mohr method involves the formation of a red-brown silver chromate precipitate.
When did Jacob Volhard die?
Jacob Volhard died on 1910-01-14.
When was Jacob Volhard born?
Jacob Volhard was born on 1834-06-04.
Why is back titration required in the volhard method?
This method uses a back titration with potassium thiocyanate to determine the concentration of chloride ions in a solution.Before the titration an excess volume of a standardized silver nitrate solution is added to the solution containing chloride ions, forming a precipitate of silver chloride (AgCl). The term 'excess' is used as the moles of silver nitrate added are known to exceed the moles of sodium chloride present in the sample so that all the chloride ions present will react.Ag+ + Cl- AgCl(s) (Ksp = 1.70 × 10−10)Excess WhiteExcess of Ag+ is back titrated with SCN-.
What has the author Jakob Volhard written?
Jakob Volhard has written: 'Justus von Liebig'
What is Christiane Nüsslein-Volhard's birthday?
Christiane Nüsslein-Volhard was born on October 20, 1942.
When was Christiane Nüsslein-Volhard born?
Christiane Nüsslein-Volhard was born on October 20, 1942.
