How is a 25mL volume of a 1.50molL1 solution of potassium permanganate prepared?

1 Answer
Jun 2, 2017

Take a 5.93g mass of potassium permanganate...........

Explanation:

Add a 25.0mL volume of water from a volumetric pipette.......

And thus Concentration=Moles of potassium permanganateVolume of solution

=5.93g158.03gmol125.0×103L=1.50molL1 as required........

Note that permanganate solutions are unstable with respect to reduction, and also their deep colour often prevents the visualization of the calibration marks on your volumetric glassware.