00:03
Here in this problem, given 33 .7 milligram of a non -electolite is dissolved in enough water to make 175 milliliters solution at 25 degrees celsius.
00:16
We have to find the osmotic pressure in turn.
00:20
Now, we have the mass of the non -electolite.
00:24
So, let's write that 33 .7 milligram.
00:29
And let's convert it into gram.
00:32
So 33 .7 times 10 to the power negative 3 gram.
00:38
Since 1 milligram is 10 to the power negative 3 gram.
00:44
So we have the mass of the solute in gram.
00:48
Now let's find out moles of salute.
00:52
Moles of salute is here is the mass 33 .7 times 10 to the bar negative 3 .3 .7 times 10 to the gram divided by its molar mass which is given here 598 gram per mole so write 598 gram per mole and we get 0 .0635 times 10 to the power negative 3 modes now the now we have 175 milliliter solution.
01:40
So, volume of solution is 175 milliliter.
01:50
Let's convert it into liter by multiplying with 10 to the per negative 3.
01:56
Since 1 milliliter is 10 to the power negative 3 later.
02:01
Now we have moles of solute, we have volume of solution in litre.
02:06
So we can find out the molar concentration.
02:10
So, molarity is most absolute divided by volume of solution in liter.
02:19
Let's like this one, 175...