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aqueous solutions are not stable for long
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Why is potassium permanganate not used as a primary standard?
Potassium permanganate is not used as a primary standard because it is hygroscopic, meaning it readily absorbs water from the atmosphere, leading to inaccuracies in measurements. Additionally, its high reactivity with organic compounds can cause side reactions, affecting the accuracy of the titration results. Finally, potassium permanganate has multiple oxidation states, making it difficult to determine its exact concentration in a solution, further limiting its suitability as a primary standard.
Why iodine is not directly employed as the primary standard?
Iodine is not directly employed as a primary standard because it is less stable in solution compared to other primary standards like potassium dichromate or potassium permanganate. Additionally, iodine is sensitive to light and air, leading to potential degradation and affecting its accuracy as a primary standard.
Why is potassium permanganate used in titration experiment despite being a secondary standard solution?
kmno4 is very good oxidizing agent. that means it is easily reduced by any other reagent. so it can't be considered as primary standard as its concentration changes upon free leaving
Why kmno4 is a secondary standard?
Potassium permanganate solutions due to the strong oxiding nature readily forms MnO2 on contact with impurities. Traditionally sources of KMnO4 always contained traces of MnO2 . KMnO4 solutions "go off" when they stand for a period.
Is permanganate a metal?
No, permanganate is not a metal. It is an anionic form of the compound potassium permanganate, which contains the permanganate ion (MnO4-).
What is the name of NaMnO4 compound?
The name of the compound NaMnO4 is sodium permanganate.
What is the correct name for AlMnO4?
The correct name for AlMnO4 is aluminum permanganate.
Is k2cro4 a primary or secondary standard and why?
K2CrO4 is a secondary standard. This is because it is not directly titrated against a primary standard but rather is standardized by titration against a primary standard, such as sodium thiosulfate in iodometric titrations.
Chemical symbol for permanganate?
The formula for potassium permanganate is KMnO4
What is name of KMnO4?
KMnO4 is potassium permanganate.
WHAT IS THE VALANCY OF POTASSIUM PERMANGANATE?
The valency of potassium permanganate is +7.
What is the formula for permanganate and ammonium?
Permanganate refers to the permanganate anion (MnO4-), and ammonium refers to the ammonium cation (NH4+).
