Answer: The molality of [tex]MgF_2[/tex] solution is 4.013 m
Explanation:
Molality is defined as the amount of solute expressed in the number of moles present per kilogram of solvent. The units of molarity are mol/kg.
The formula used to calculate molarity:
.....(1)
Given values:
Given mass of [tex]MgF_2[/tex] = 20.0 g
Molar mass of = 62.3 g/mol
Mass of solvent = 80.0 g
Putting values in equation 1, we get:
[tex]\text{Molality of }MgF_2=\frac{20.0\times 1000}{62.3\times 80.0}\\\\\text{Molality of }MgF_2=4.013m[/tex]
Hence, the molality of [tex]MgF_2[/tex] solution is 4.013 m
