What is the heat of solution per mole of oxalic acid MW 126

What is the heat of solution per mole of oxalic acid (MW = 126.07 g/mol ), if a temperature drop of 1.43 K is seen when 1.25 grams of oxalic acid is dissolved in a calorimeter with a constant of 0.305 kJ/K. Oxalic acid crystallizes as a dihydrate and the reported molecular weight (126.07 g/mol) includes these waters of crystallization.

Solution

mass of oxalic acid = 1.25 g

moles of oxalic acid = 1.25 / 126.07

                               = 9.915 x 10^-3 mol

temperature rise = 1.43 K

Q = Cp dT

    = 0.305 x 1.43

Q = 0.436 kJ

delta H sol = - Q / n

                 = - 0.436 / 9.915 x 10^-3

deltaH = 44.0 kJ/mol

heat of solution = 44.0 kj/mol