Question

What is the molality of a solution that contains 5.10 mol `KNO_3` in 4.47 kg water?

Answer 1

`"Molality"` is an alternative measure of concentration. It reports amount of solute per unit MASS of SOLVENT.

Explanation:

Molality is often used because it is independent of temperature. :

`(5.10*"moles")/(4.47*kg)` `~=` `1.00` `mol*kg^-1`