00:01
In the given question, we have to find the concentration of kmno4 in the solution.
00:19
We have been given that the mass of kmno4 is 25 grams.
00:31
We have been also given that the volume of solution is equal to 400 milliliter which is 0 .4 liter.
00:50
Now for finding the concentration, we will be finding out the molarity and the formula for that is mass of solute upon volume of solution.
01:14
Now here, firstly we will be finding the moles of kmno4, potassium permanganate.
01:25
So that will be, for that, firstly we will be figuring out the molar mass of kmno4.
01:32
So the molar mass of potassium is equal to 39 .10 grams per mole.
01:44
Now the molar mass of mn is 54 .94 grams per mole.
02:02
And finally, the molar mass of oxygen is 16 grams per mole.
02:14
Now here there are 4 atoms of oxygen present in kmno4.
02:23
So the molar mass of kmno4 is 39 .10 plus 54 .94 plus 4 multiplied by 16 because 4 atoms of oxygen are there.
02:45
So this will be 158 .041...