Suppose that 0.245 mol of naphthalene (C₁₀H₈, a nonelectrolyte) is dissolved in 2.29 mol of chloroform (CHCl₃, a nonelectrolyte).

The normal freezing point of CHCl₃ is 63.5C. K_f for CHCl₃ is 4.68 C/m. The molar mass of C₁₀H₈ is 128.18 g/mol. The molar mass of CHCl₃ is 119.37 g/mol.

Calculate the freezing point (in Celsius) of this solution.