1. What was the temperature change for the water in the calorimeter (ΔTwater)? 3°C
2. What was the temperature change for the metal sample (ΔTmetal)? Assume the intial temperature of the metal was the same as the temperature of the water it was boiled in. 70°C
3. What was the specific heat of water in J/g°C?
4. Using the following equation, your answers to questions 1-3, and your data table, determine the specific heat of the metal sample you tested.
5. Identify you metal using the list of specific heat values provided. The metal that was identified was Zinc.
6. Calculate the percent error in the specific heat value that you determined experimentally.
The purpose of this experiment was to determine the identity of a mystery metal by finding the specific heat of the metal and comparing it to a list of specific heat values for different metals. Before beginning the lab and during the lab, the mass of the metal sample and water sample was taken. This information was later used to help determine the specific heat of the mystery metal. The temperature of the boiling water, the temperature of the water in the calorimeter without the metal, and the temperature of the water and metal in the calorimeter were also collected to help determine the mystery metal. After this, the temperature changes for the water in the calorimeter and the metal sample were collected. After all the data was gathered, an equation was used to find the specific heat of the mystery metal and determine its true identity. The calculated specific heat of the metal was 0.231 J/g°C. Even though this was close to the specific heat of Cadmium, the actual metal was Zinc, which had a specific heat of 0.390 J/g°C. The purpose of the lab was met, but not very well. There was a percent error of 40%, which is ridiculously high.
Many things could’ve gone wrong in the lab such as reading the thermometer wrong, miscalculating the...