Answer: The molality of solution is 0.66 mole/kg
Step-by-step explanation:
Molality of a solution is defined as the number of moles of solute dissolved per kg of the solvent.

where,
n = moles of solute
= weight of solvent in g
moles of
=

Now put all the given values in the formula of molality, we get

Therefore, the molality of solution is 0.66 mole/kg