Density and Specific Heat Practice 1. A block of unknown composition has a density of 2.3 g/mL and measured 2 cm x 1 cm x 4 cm. What is the weight of the block? 2. A sample has a specific heat of .155 cal/g°C. How much energy will be required to raise the temperature of the sample from 20°C to 35°C, if the sample has a mass of 8g? 3. What will be the final temperature of the sample in #2 if 50 cal of energy is used with the same initial temperature? 4. A 12mL sample of a compound has a density of 1.44g/mL. What is the weight of the sample in mg? 5. What is the mass of a sample that is heated to 65°C from 20°C using 0.359 kcal of energy. The specific heat of the sample is 2.1 cal/g°C. 6. What is the density of a 10g sample that raises the water level in a graduated cylinder from 25mL to 48mL when it is immersed in the water? 7. What is the volume of 5.5g sample with a density of 1.5 g/mL and a specific heat of 0.27 cal/g°C?