00:01
Starting with the formula for boiling point elevation, change in boiling point is equal to i, which is a van't hoff factor, kb times m.
00:18
So for a, we have nano3, which we dissociate into na +, and no3-, and so here we have two ions, so i is equal to two.
00:33
So delta tb is equal to 2 kbm.
00:45
B, hf is a weak acid, and it does not dissociate, which means that i is equal to 1.
01:00
Delta tb is equal to 1 kbm.
01:04
For c, glucose, c6h12o6.
01:12
This is a molecular compound and it also does not dissociate...