temperature of the water with a thermometer 2. Calculate the heat gained by the water (lost and record. (It will be assumed the tem- by the metal) in the calorimeter using the perature of the metal is the same as the equation in the Introduction. boiling water.) 3. calculate the specific heat of the metal using g Measure the temperature of the water in the the answer from number 2 and the equation plastic foam cup and record. in the Introduction. 10. Remove the test tube containing the metal from the boiling water and immediately pour the metal into the plastic foam cup. 11. Stir the water in the plastic foam cup slowly {thermometers can be broken easily), then record the highest temperature reached. 12. Recover the metal by carefully pouring the water off (decanting). Spread the solid metal on a paper towel to dry. Do not let any metal CONCLUSIONS 1. What physical properties, other than specific heat, could you use L0 help you identify the sample(s) used in this experiment. 2. Why is water an excellent material to use in a calorimeter? particles get into your labaratory sink. FURTHER |NVEST|GAT|ONS 13. REPE?':fBT_'TB procedure with a different 1. Calculate the specific heat of a metallic ele- metal if time permits. ment if 314 joules of heat energy are needed to raise the temperature of a 50.0 g sample from 25.0C to 50.0C. ANALYSIS 2. Propose a method for determining the specific 1. Prepare a table for your data, using Table heat, C,, for a metal like sodium which 11-1 as a guide. reacts with water. Table 11-1 MASS DATA TEMPERATURE DATA test tube 9 boiling water ___"C test tube + metal water in cup metal water in cup after metal plastic foam cup was added cup + water - water heat gained by water = J AT =