It can be stored in its liquid form in a specially insulated bottle called a Dewar flask. The energy given up by the warm water will cause the nitrogen to boil until it is completely converted to gaseous nitrogen. This energy is called the heat of vaporization. Wear protective glasses and an apron at all times. Take great care in handling liquid nitrogen.
Skin contact can result in serious frostbite.
Wash your hands thoroughly before leaving the laboratory. Prepare a data table or use one provided by your teacher. Determine the mass of a styrofoam cup. Add the hot water to the cup and determine the total mass. Do Steps 4 and 5 simultaneously.