20 kg of LiCl(s) is added to 125 kg of an aqueous solution containing 10 wt% LiCl at 25 °C? If the mixing process is isothermal, how much heat must be removed from the system? The molecular weights are 42.39 g/mol for LiCl and 18.015 g/mol for water. The heat of solution for 1 mole of LiCl in 8.145 moles water is about -32 kJ/mole LiCl(s). The heat of solution for 1 mole of LiCl in 21.177 moles water is about -35 kJ/mole LiCl(s).