00:01
The question is asking to find the molality of each water solution given the boiling points.
00:05
First class study going to give, let us assume three solutions a, b, c.
00:14
The boiling point for solution a is given 100 .25 degrees celsius.
00:21
The boiling point for solution b is 1 .01 .53 degrees celsius.
00:28
Boiling point for solution c is 102 .805.
00:33
Degrees celsius we know normal boiling point of water is 100 degrees celsius the increasing boiling point for solution a let us represent with delta t is equal to hundred point two five minus hundred we get 0 .25 degrees celsius the increase in boiling point for solution b delta b is equal to 101 .53 minus 100 we get 1 .25 5 3 degrees celsius and the increasing boiling point for solution c is 1 .02 .805 minus 100.
01:27
We get 2 .805 degrees celsius.
01:31
You know the formula.
01:32
The ingres in boiling point delta is equal to kbm.
01:38
Here kb is the molar boiling point elevation wash and m is the molality.
01:43
So from this formula, the morality, the m .a is equal to del t .a.
01:49
Developed by kb...