A literature value for the enthalpy of dissolution of MgCl₂(s) is −155 kJ mol⁻¹. In an experiment, 3.00 g of MgCl₂ (molar mass 95.21 g mol⁻¹) is dissolved in 75.0 g of water initially at 23.5 °C in a calorimeter that has a heat capacity of 45.0 J °C⁻¹. After complete dissolution, the temperature is 30.2 °C. Assume the specific heat capacity of the solution is 4.18 J g⁻¹ °C⁻¹. Calculate the percent error of the experimental enthalpy of dissolution relative to the literature value.