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Oxalic acid is generally warmed slightly because it is not completely soluble and heat helps this. It aids in accuracy of the titration.
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What is the difference between titration and standardization?
we know the concentration of standardization solution .eg (oxalic acid , mgso4 much more )but wo donot know the concetration of titration solution eg (kmno4 ,EDTA )
Why do you add sulfuric acid to an oxalic solution?
Oxalic acid is an organic covalent compound not very much soluble in water during its titration with an oxidizing agent as KMnO4 its decomposition is required into CO and CO2 along with removal of water, sulphuric acid makes this process possible.
Why acid is added in KMnO4 titration?
as kmno4 acts as a strong reducing agent only in acid medium
Why in titration of kmno4 no indicator is used?
Because KMnO4 is an internal indicator.. No need to have any indicator.. it has distinctly different colour when it is reduced
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.
What is the difference between titration and standardization?
we know the concentration of standardization solution .eg (oxalic acid , mgso4 much more )but wo donot know the concetration of titration solution eg (kmno4 ,EDTA )
Why do you add sulfuric acid to an oxalic solution?
Oxalic acid is an organic covalent compound not very much soluble in water during its titration with an oxidizing agent as KMnO4 its decomposition is required into CO and CO2 along with removal of water, sulphuric acid makes this process possible.
Before reaction of kmno4 with oxalic acid why the reaction is slow and after reaction very fast why?
please nannu tinakandi answer pampandi
Why acid is added in KMnO4 titration?
as kmno4 acts as a strong reducing agent only in acid medium
Why KmnO4 is used as self indicator?
As we all know that the potassium permanganate (KMnO4) is the dark purple color solution ...and in titration it become colorless ....so when the titration is completed ...and the other single drop of KMnO4 solution produce pinkish colour in a beaker ...which indicate that the reaction was completed just a single drop before .. we use indicator in a a reaction in order to indicate ...but we dont used indicator in titration with KMnO4 because it also indicate us by changing its color ...colorless to pink
Why we ad sulpheric acid with oxalic acid?
we add sulpheric acid with oxalic acid to stable the ions when titrated against KMNO4
Why in titration of kmno4 no indicator is used?
Because KMnO4 is an internal indicator.. No need to have any indicator.. it has distinctly different colour when it is reduced
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.
What is formed in the titration of FeCl2 with KMnO4 with H2SO4 present?
FeCl2 + 2KMnO4 --> Fe(MnO4)2 + 2KCl
In permanganate titration's why is nitric acid not used?
Nitric acid, being a strong oxidising agent, interferes with oxidising capacity of KMnO4 hence reducing accuracy of titration.
Why HCL is not use to acidify KMnO4 soln in permanganometric titration?
It is probably because a part of the oxygen produced from the reaction of KmnO4 and HCl is used up in oxidising the HCl to Cl2 gas
How to prepare a 0.2N KMnO4 solution?
Formula weight of KMnO4 is 158.04. The equivalent weight depends on the reaction involved. In acidic media it is (formula weight) /5, in neutral although this is more difficult to control it is the formula weight. Knowing which type it is usually acidic as it is easier, you will need 158.04/5 X 0.2 = 6.32g. Sulfuric acid is usually added in the titration to ensure the correct oxidation reaction is carried out. Also note KMnO4 is not considered a primary standard so you should really filter the solution to remove any MnO2 caused by oxidation of organic impurites in the water you are using, and standardise the solution by titration against say oxalic acid. K
