00:01
In this question, we are assigned with the task to provide the molality of the solutions given.
00:05
We are provided with four solutions and we are supposed to calculate molality of all the solutions.
00:12
Now let us look at the formula to calculate molality.
00:15
Malality is calculated by taking the ratio of number of moles of substrate divided by, that is, solute volume of the solvent in kg units.
00:34
This is the formula we are going to employ to calculate the molality of each solutions.
00:39
Now let us look at the first solution.
00:41
First solution is prepared by dissolving 583 grams of h2safo in 1 .5 kg of water.
00:48
Now let us convert the 583 grams of h2safo to the corresponding moles.
00:54
This can be done by dividing weight with molecular weight of h2.
00:59
Number of moles of h2 sfo is 5 .9442 moles.
01:04
Molality of the solution is 3 .9628 mol.
01:10
Now let us calculate the molality of the second solution...