CHEMISTRY PRACTICAL: Titration of Fe2+ by Potassium manganate (VII),
KMnO4
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BA1 which is a 0.18M solution of KMnO4
BA2 which is a solution containing Fe2+
20 g of sample containing Fe was dissolved in water to make 250 Cm3 of BA2
solution
1. Pipette 25 ml of BA2 in the conical flask and titrate with BA1 in the
Burette
Questions
1. Write a balanced equation for the reaction between Fe2+ and acidified 𝑀𝑛𝑂4 −.
2. Calculate the amount in mol of 𝑀𝑛𝑂4 – that reacted
3. Calculate the amount in mol of Fe2+ in 1L of the solution.
4. Calculate the percentage of iron in the original sample of iron to 1 decimal place
(Fe=56).