Sara+and+Caitlyn's+Calorimetry+Lab

=Calorimetry Lab= 10/12/09


 * Participants**: Sara
 * Purpose**: The purpose of this lab is to Find the specific heat of a metal useing calorimetry to inturn identify the metal.
 * Lab Documents**: Include a link to any documentation provided for the lab or any references used in writing the lab report.


 * Brief Description of Experiment**: In this experient we first found the mass of the inner cyliner of the calorimeter so that we could later subtract that amount when finding the mass of the water in that container. Next we filled the calorimeter will water and took the inital temerature. After we found the mass of the water in the container and subtracted the mass of the empty container so that we could get the mass of just the water. Finally we retreived the metal out of the boiling water, which since it was boiling we knew it was 100 degress celcius, and dropped the metal into our calorimeter. We recorded the the final temperature when we noticed that thermometer stopped rising. Lastly we took the mass of the metal.
 * Data**: [[image:lab.JPG]]
 * Sample Calculations:**
 * Q lost || The one calculation we used was heat lost and heat gained which are equal. The equation is mass x spacific heat x change in temperature. Q=m*c* ^T ||
 * Results**: The results we concluded in our lab were the differant specific heats for the metal. Although they were not all the same, i beleive that the average could be used to find what type of metal we used in this expement.

1. The ways we tried to make our results as accurate as possible were to do the experemnt the same each time, such as taking the temperature the same way each time. 2. The calorimeter fails as a closed system because some of the heat from the boiled metal is obsorbed into the inner container, thus taking some of the heat that could be added to the water away. 3. I was told we did not need to do number 3.
 * Lab Questions**:
 * Conclusion**:
 * In conclution this lab taught me how to calculate spacific heat and the concept that when a hot object is dropped into cooler water the two objects will become the same temperature.

//Reflection: I am not able to do this reflection because i was not able to heat thje parifin.//