[odicon]

If the K_b of a solvent is 3.51^oC/m, and the boiling point of the pure solvent is 70.4^o, then what is the boiling point of a 4m solution of a solute dissolved in the solvent?

The answer is 84.4^oC.

I don't have any background whatsoever on solutions, so I would very much appreciate it if you could please explain the process of getting this answer...

Thanks in advance.

[Borek]

Google boiling point elevation.