Question

The volume of 0.5m kmno4 solution which can oxidise 20ml of 0.2m mohr salt solution in acidic medium is

Answer 1

The volume of 0.5m kmno4 solution which can oxidise 20ml of 0.2m mohr salt solution in acidic medium is

Answer 2

1.6 ml of 0.5 Kmno4 solution can oxidise 20ml of 0.2 M mhor salt solution in acidic medium

.......

0.2 M of mohr salt contain 0.2*20 /1000 = 4*10-3 moles of salt

2/10 moles of KMnO4 reacts with 1 mol of mohr salt

4*10-3 moles of salt will take 4*10-3 /5 = 8*10-4 moles

molarity = no. of moles/ volume of solution

volume = 8*10-4 /0.5

= 1.6*10-3 L

= 1.6 ml