Question

4 mole of a mixture of mohrs salt and fe2(so4)3 requires 500 ml of 1 m k2cr2o7 for complete oxidation in acidic medium. The mole % of the mohrs salt in the mixture is

Answer 1

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here's ua answer :
Normality=number of gram moles of solute÷volume of the solution(in liters)
Molarity=number of gram moles of solute÷volume of solution(in liters)
Titration of KMnO4 against oxalic acid
Preparation of standards solution of oxalic acid(500ml/10(0.1M) solution)
The molecular mass of crystalline oxalic acid is H2C2O4.2H2O=126
Weight of oxalic acid required to prepare 1000ml of 1M solution=126g
Therefore,weight of oxalic acid required to prepare 500ml 0.1M
Solution=126/1000×500×0.1 =6.3g

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Answer 2

Answer:

it's answer is 1/3.....

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