0
What is the equivalent weight of potassium permanganate in alkaline medium?
Wiki User
∙ 12y ago
1/5 of molecular weight
Wiki User
∙ 12y ago
The equivalent weight of potassium permanganate in alkaline medium is 31.6 g/mol. This value takes into account the reduction of permanganate ions to manganese dioxide in alkaline conditions, resulting in a different equivalent weight compared to acidic conditions.
Add your answer:
Earn +20 pts
What is the Reaction of phenol with potassium permanganate?
When phenol reacts with potassium permanganate in an acidic medium, the purple permanganate solution turns colorless as it is reduced to manganese dioxide. This reaction is a redox reaction where phenol is oxidized to benzoquinone.
What particles diffused the farthest potassium permanganate or methylene blue?
Potassium permanganate particles diffused farther than methylene blue particles because potassium permanganate has a smaller molecular size, allowing it to move more easily through the medium. Additionally, potassium permanganate is more soluble in water compared to methylene blue, which also contributes to its larger diffusion distance.
What particles disffused the farthest potassium permanganate or methylene blue?
Potassium permanganate particles diffuse farther than methylene blue particles. Potassium permanganate has smaller particles that can move more easily through a medium, resulting in a greater overall distance of diffusion compared to methylene blue.
Why is HCl not used as catalyst in the standardization of potassium permanganate?
HCl is not used as a catalyst in the standardization of potassium permanganate because it can react with permanganate ions, affecting the accuracy of the titration. The standardization process requires a neutral or slightly basic medium to ensure the permanganate titration proceeds correctly.
How do you prepare standard solution of potassium dichromate to compare icteric index of serum?
To prepare a standard solution of potassium dichromate for comparing icteric index of serum, dissolve a known quantity of potassium dichromate in a specified amount of water to make a standard solution with a known concentration. This solution can be used as a reference solution to compare the color intensity of the serum sample at a specific wavelength, aiding in the determination of the icteric index. The icteric index is calculated based on the absorbance values of the standard solution and serum sample at the specified wavelength.
How do you prepare standard solution of potassium dichromate to compare icteric index of serum?
To prepare a standard solution of potassium dichromate for comparing icteric index of serum, dissolve a known quantity of potassium dichromate in a specified amount of water to make a standard solution with a known concentration. This solution can be used as a reference solution to compare the color intensity of the serum sample at a specific wavelength, aiding in the determination of the icteric index. The icteric index is calculated based on the absorbance values of the standard solution and serum sample at the specified wavelength.
Does potassium permanganate dye diffuse faster in water or an agar gel?
Potassium permanganate dye diffuses more quickly through water than agar gel.The rate of diffusion depends on the molecular weight of the chemical and the characteristics of the medium through which the substance diffuses.
Does potassium permanganate dye diffuse more rapidly through water of agar gel?
Potassium permanganate dye diffuses more rapidly through water than agar gel. The rate of diffusion depends on the molecular weight of the chemical and the characteristics of the medium through which the substance diffuses.
Why titration of potassium permanganate is carried out in acidic medium?
Potassium permanganate undergoes reduction in acidic medium which generates a color change that can be easily observed, making it suitable for use as an oxidizing agent in titrations. Additionally, the acidic medium prevents the premature reaction of permanganate ions with reducing agents present in the solution before the titration is conducted.
What is the equivalent weight of potassium chromate What is the equivalent weight of KMnO4 in neutral medium?
The equivalent weight of potassium chromate (K2CrO4) is equal to its molar mass divided by the change in oxidation number of the central atom upon reduction. For KMnO4 in a neutral medium, the equivalent weight is calculated similarly, taking into account the change in oxidation number of manganese from +7 to +2 upon reduction.
What is alkaline medium?
An alkaline medium is a solution that has a higher pH level than 7. It contains more hydroxide ions (OH-) than hydrogen ions (H+). Alkaline mediums are commonly used in various chemical reactions and industrial processes.
Why potassium permanganate use in convection experiment?
simply because the chemical gives a very dark/strong purple color. You'll be able to see where the convection currents take the chemical in stagnant water when the medium (water) is heated...
How do you prepare the 1N concentration of potassium permamganate solution?
N (normality) describes a solution that contains 1 gram equivalent weight (gEW) per liter solution. An equivalent weight is equal to the molecular weight divided by the valence (here it gets a little tricky, for acids ands bases it refers to the number of H+ or OH-, in salts it must be expressed which ion is meant unless the ratio is 1:1). In the case of KMnO4, equivalent wt is reaction specific. When KMnO4 is used in acid medium as oxidiser, 5 electrons are gained by Mn atom. So equivalent wt of KMnO4 in acid medium = Molecular wt/no.of electrons gained in redox reaction = 158/5 =31.6. So for 0.1N KMnO4 solution, you have to dissolve 3.16g KMnO4 in 1L water. (Usually a little bit excess is taken, say 3.25g, since some crystals of KMnO4 will be remained undissolved that have to be removed by filtration. So eventhough u r preparing 0.1N KMnO4 solution by accurate weighing,it is not a primary standard and u have to standardise it against a primary std such as oxalic acid or sodium oxalate. In alkaline or neutral medium, reaction of KMnO4 is different and Mn gains 3 electrons in redox reaction. So, for alkaline medium redox titrations, equivalent wt of KMnO4 will be 158/3 = 52.6. So for 0.1N KMnO4 solution in alkaline medium redox titration, dissolve 5.26g in 1L water.
What is the pH of ginger root?
Ginger root is medium-level alkaline
What is the colour of methyl orange in alkaline medium?
the color of methyl orange in an acidic medium is orange
How much potassium in fig?
1 medium-sized fig has about 116mg of potassium.
Is kitchen cleaner weak medium or strong alkaline?
Kitchen cleaner is typically a strong alkaline solution, designed to cut through grease and grime in the kitchen. Its alkalinity helps to break down tough stains and soils effectively.
