Question

To prepare "25 ml" of m/20 solution of oxalic acid and with the help of this determine the molarity and the strength of given kmno4 solution

Answer 1

Hi there,

1. Preparation of m/20 oxalic acid:

1. Take a clean and dry Volumetric flask.

2. Weigh 1.5gram of Oxalic acid.

3. Add a few ml of distilled water in it and stir.

4. Make the Volume up to 25ml with Distilled water.

2. Determination of the Molarity and Strength with Kmno4:

1. Fill the Kmno4 Solution into Burette.

2. Pipette out 5ml Oxalic acid Solution into the Conical Flask.

3. Note the initial readings of Burette.

4. Add phenolphthalein indicator in the Conical flask.

5. Titrate Oxalic acid against Kmno4 until Pink Color is achieved.

6. Note the Final reading.