Prepare a standardise solution of Ammonium Iron (II) Sulfate and use it to standardise a solution of KMnO4 by titration

Step 1

Weigh ammonium iron (II) using a clock glass

Step 2

Add deionised water and dilute sulfuric acid into a beaker

Step 3

Rinse clock glass into beaker and stir with a glass rod

Step 4

Pour into a volumetric flask. Make it to the graduation mark and invert

Step 5

Pipette the solution into a conical flask with sulfuric acid

Step 6

Fill a burette with KMnO4 until the 0 mark and fill the jet below the meniscus

Step 7

Drip while swirling the conical flask until a pale pink colour forms

Colour change of this experiment

Purple to permanent pale pink

Draw a diagram of this experiment