0
What else can I help you with?
Why kmno4 is added slowly in the titration?
KMnO4 is added slowly in titration to accurately determine the endpoint of the reaction. Rapid addition can lead to overshooting the endpoint, resulting in an inaccurate titration. Slow addition allows for better control and more precise determination of when the reaction is complete.
Why HCL is not use to acidify KMnO4 soln in permanganometric titration?
HCl cannot be used to acidify KMnO4 solution in permanganometric titration because it will react with KMnO4 reducing it to MnO2, which interferes with the titration process and affects the accuracy of the results. Instead, dilute sulfuric acid (H2SO4) is typically used to acidify the KMnO4 solution, as it does not interfere with the redox reaction between KMnO4 and the analyte.
Why you add h2so4 to the kmno4 titration?
consider the balance chemical equation, suppose the reaction with oxalic acid 2MnO4- + 16H+ + 5C2O4 --> 2Mn+2 + 8H2O + 10CO2 Above reaction shows that the reaction requires a number of protons to occur, H2SO4 is the source of these protons.
Why oxalic acid is heated before titration with KMnO4?
Heating oxalic acid before titration with KMnO4 helps to remove any water of crystallization, making the compound anhydrous. This ensures accurate measurement of the substance being titrated and helps to prevent interference from water during the titration process. Additionally, heating can help to dissolve the oxalic acid more effectively, ensuring a more efficient reaction during titration.
Why KMnO4 is added slowly in titration?
Potassium permanganate (KMnO4) is added slowly in titrations because it is a strong oxidizing agent that reacts quickly and vigorously with many compounds. By adding it slowly, you can control the reaction rate and prevent over-titration, ensuring accurate results. Additionally, adding it slowly allows for better observation of color changes that signal the endpoint of the titration.
Why kmno4 is added slowly in the titration?
KMnO4 is added slowly in titration to accurately determine the endpoint of the reaction. Rapid addition can lead to overshooting the endpoint, resulting in an inaccurate titration. Slow addition allows for better control and more precise determination of when the reaction is complete.
Why HCL is not use to acidify KMnO4 soln in permanganometric titration?
HCl cannot be used to acidify KMnO4 solution in permanganometric titration because it will react with KMnO4 reducing it to MnO2, which interferes with the titration process and affects the accuracy of the results. Instead, dilute sulfuric acid (H2SO4) is typically used to acidify the KMnO4 solution, as it does not interfere with the redox reaction between KMnO4 and the analyte.
Why you add h2so4 to the kmno4 titration?
consider the balance chemical equation, suppose the reaction with oxalic acid 2MnO4- + 16H+ + 5C2O4 --> 2Mn+2 + 8H2O + 10CO2 Above reaction shows that the reaction requires a number of protons to occur, H2SO4 is the source of these protons.
Why oxalic acid is heated before titration with KMnO4?
Heating oxalic acid before titration with KMnO4 helps to remove any water of crystallization, making the compound anhydrous. This ensures accurate measurement of the substance being titrated and helps to prevent interference from water during the titration process. Additionally, heating can help to dissolve the oxalic acid more effectively, ensuring a more efficient reaction during titration.
Why KMnO4 is added slowly in titration?
Potassium permanganate (KMnO4) is added slowly in titrations because it is a strong oxidizing agent that reacts quickly and vigorously with many compounds. By adding it slowly, you can control the reaction rate and prevent over-titration, ensuring accurate results. Additionally, adding it slowly allows for better observation of color changes that signal the endpoint of the titration.
Why was an acid added to the iron II ammonium solution before titration?
The acid is added to the iron II ammonium solution to prevent oxidation of iron II ions to iron III ions, which could lead to an inaccurate titration result. The acid helps maintain the iron II ions in their reduced state for the titration with the permanganate solution.
Why use h2so4 instead of hcl in titration of kmno4?
H2SO4 is typically used instead of HCl in the titration of KMnO4 because HCl can react with KMnO4 and form chlorine gas, which can interfere with the titration results. Additionally, H2SO4 provides the required acidic medium for the reaction to occur between KMnO4 and the analyte.
Why brown turbidity found in titrating KMno4 with oxalic acid?
Brown turbidity in the titration of KMnO4 with oxalic acid may be due to the formation of manganese dioxide (MnO2). This reaction occurs in acidic conditions and indicates that the end point of the titration has been reached. MnO2 is insoluble and can appear as a brown precipitate, causing turbidity in the solution.
Why is brown turbidity found in titrating KMnO4 solution with oxalic acid?
Brown turbidity in a titration of KMnO4 with oxalic acid typically arises from the formation of manganese(II) ions during the reaction. When KMnO4, which is purple, is reduced by oxalic acid, it produces manganese(II) ions, which can form a brown precipitate of manganese(IV) oxide (MnO2) in certain conditions. This turbidity indicates the presence of manganese species that are not fully soluble, often due to incomplete reduction or changes in pH during the titration.
Why first colour changes when KMnO4 is added to ethanol and colour reappears when excess of KMno4 is added?
When KMnO4 is added to ethanol, it gets reduced to MnO2, causing the initial color change. However, when excess KMnO4 is added, MnO2 gets further oxidized back to KMnO4, resulting in the reappearance of the original color. This demonstrates the redox nature of the reaction between KMnO4 and ethanol.
Redox titrations of ferrous ion with KMnO4 why the HCl is not used in this reaction?
HCl is not used in redox titrations of ferrous ion with KMnO4 because it can react with KMnO4 and interfere with the titration process. HCl can reduce KMnO4, which would lead to inaccurate results by altering the equivalence point of the titration. Instead, a buffer solution is often used to maintain a constant pH during the titration.
In permanganate titration's why is nitric acid not used?
Nitric acid is not used in permanganate titrations because it can react with permanganate ions and reduce them before they can oxidize the analyte. This interference can lead to inaccurate results in the titration process. Instead, sulfuric acid is often used as the acidifying agent in permanganate titrations.
