Determination of molarity of potassium permanganate solution using mohr's salt by volumetric analysis
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Explanation:
Scale about 0.2g solid KMnO4 on balance, put it in a 500mL of beaker, add 250mL of distilled water into it, heat and stir it until the solid is dissolved completely. After the solution turn co1d, pour it into a brown reagent bottle, shake it even and block it up tightly with the cork.
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KMnO4 acts as a good oxidising agent in acidic medium. If acid is not used KMnO4 may be oxidised to MnO2 giving a brown precipitate.
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