Answer:
129.18 °C
Explanation:
The elevation in the boiling point is a colligative property that can be calculated using the following expression.
ΔTb = Kb × b
where,
ΔTb: elevation in the boiling point
Kb: boiling point elevation constant
b: molality
The molality of the solution is:
[tex]b=\frac{38.5gFeCl_{3}}{(162.2 g FeCl_{3}/molFeCl_{3}).0.250 kgX} =0.949m[/tex]
ΔTb = Kb × b
ΔTb = (1.03 °C.kg/mol) × (0.949 mol/kg) = 0.977°C
The boiling point of the solution is:
128.20°c + 0.977°C = 129.18 °C
