How can find heat exchange in water for lab reports Calorimetry (Physic 2A)

Part 1: Heat Exchange in water Procedure Fill a Styrofoam cup with about 100 ml (100g) of hot water. Measure the temperature of the water. 1. mcup = 3.0g g 2. mcup + mhot water 103.2g 3. mhot water = 100.2g g (subtract 1 from 2) Note: Between step 4 and step 8, no more than 15 seconds should elapse. Waiting too long will cause the hot water to change temperature on its own. Choreograph and rehearse the steps to ensure no more than 15 seconds elapse, and make sure no drops of water are lost as the thermometer is removed from the cup-EVERY DROP COUNTS. Any drops of water stuck to the sides of the cup or on the ice entering the cup will compound your error. This lab is so precise, the accepted percent error shall be no more than 5%. 87.5 4. Temperature = Now, place a dry piece of ice (a small piece, standard ice cube size) into the hot water. Measure the mass of the cup + hot water + ice 108.1g 5. mcup + mhot water + mice = g 6. mice = 4.9g g