February 11th 2014

HONORS CHEMISTRY PERIOD 4

 * We walked in and showed Mrs. Friedmann our completed Pre- Lab questions

* Then our tests were returned and we went over certain questions that we had

* After we went over our tests, we started the lab

LAB

* During the lab, you must first weigh the metal rod
* Then you fill up the beaker with 600 ml of water
* Put 100 ml of water into the calorimeter (styrofoam cup) and measure the temperature of the water
* Boil the water and put the metal rod in there (carefully)
* Hold it up with the tongs and make sure that it does not touch the bottom
         - This is because you want the metal rod to have the same temperature as the water, not the hot plate
* Hold it there for 1 minute and then carefully transfer the rod into the calorimeter
* Stir and measure the final temperature of the water

MY DATA:

Weight of the metal rod - 26.68 grams

Initial temperature of the water in the calorimeter - 22.6 degrees Celsius

Final temperature of the water in the calorimeter - 26.1 degrees Celsius

HOMEWORK

1.) Webassign due tonight by 11:59 p.m.
2.) Specific Heat Calculations (hand out that consists of two worksheets) due tomorrow
3.) Lab write-up due Friday (VALENTINES DAY)

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