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What is the equivalent weight of potassium permanganate in alkaline medium?
Wiki User
∙ 12y ago
1/5 of molecular weight
Wiki User
∙ 12y ago
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How do you prepare standard solution of potassium dichromate to compare icteric index of serum?
for preparing 0.1 normal solution of potassium permanganate you have to disssolve 3.16 g potssium permangnate in 1L water bt in alkaline or neutral medium reactions of potassium permanganate is different and Mn gains 3 electrons in redox reaction,so far alkaline medium redox titration equivalent wt of KMnO4 will be 158\3=52.6.so far,0.1 N KMnO4 in alkaline medium redox titration dissolve 5.26 g in 1L sol.
Why titration of potassium permanganate is carried out in acidic medium?
This is because in acidic medium kmn04 decomposes to give Mn2+ ions which impart pink colour to the solution. The reaction being Mno4- +8H+5e ----->Mn2+ + 4H2O
What is the equivalent weight of potassium chromate What is the equivalent weight of KMnO4 in neutral medium?
31.608 g/mol
What is alkaline medium?
An alkaline medium is formed when alkaline elements in food break down. This happens when they combine with (H+) ions.
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.
How do you prepare standard solution of potassium dichromate to compare icteric index of serum?
for preparing 0.1 normal solution of potassium permanganate you have to disssolve 3.16 g potssium permangnate in 1L water bt in alkaline or neutral medium reactions of potassium permanganate is different and Mn gains 3 electrons in redox reaction,so far alkaline medium redox titration equivalent wt of KMnO4 will be 158\3=52.6.so far,0.1 N KMnO4 in alkaline medium redox titration dissolve 5.26 g in 1L sol.
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?
This is because in acidic medium kmn04 decomposes to give Mn2+ ions which impart pink colour to the solution. The reaction being Mno4- +8H+5e ----->Mn2+ + 4H2O
What is the equivalent weight of potassium chromate What is the equivalent weight of KMnO4 in neutral medium?
31.608 g/mol
What is alkaline medium?
An alkaline medium is formed when alkaline elements in food break down. This happens when they combine with (H+) ions.
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?
strong alkali
