 We're going to do an experiment to determine the molar heat of vaporization of water. We're going to mass an empty calorimeter. We're going to add about 70 milliliters of water to the calorimeter, and we're going to remass the calorimeter and the water. We're going to use our CBL and temperature probe to measure the initial temperature of the water. We have a steam generator containing water. I'm going to cap off the steam generator and we're going to bubble steam through our calorimeter. The water will condense to a liquid and transfer the energy to the water in the calorimeter. We'll record the final temperature. We'll let the calorimeter cool to room temperature and remass it to determine the final mass of the water in the calorimeter.