# Materials large paper clip c thermometer soft drink

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Materials: large paper clip, °C thermometer, soft drink can, soft drink can with openings cut into the side, mixed nuts, matches, water, electronic balance, pencil & paper, 100 ml graduated cylinder, calculator Procedure: Carefully, cut out two openings along the side of a soft drink can. This will serve as your support for the second drink can that will contain water & sit on top. Bend a large size paper clip so that a nut can be attached on one end and the other end will sit flat inside the cut-out soft drink can.

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Use the graduated cylinder to accurately measure 100g (100ml) of water. Pour this water into the uncut soft drink can. Place the thermometer in the uncut can and measure the water temperature after 3 minutes. Record this temperature on data table 1. Mass the nut (g) that you will burn and record this mass on data table 1. Attach the nut to the bent end of your paper clip and carefully set the clip & nut into the cut-out soft drink can on bottom. Make sure the cans are sitting on a flat, nonflammable surface!
Carefully light the nut from the bottom using a match and record the change in water temperature as the nut burns (thermometer in the can during burning). Immediately after the nut finishes burning, record the final (highest) water temperature on data table 1. Measure the mass (g) of the remaining nut & record this in the data table 1. (Mass the burned nut and paper clip together and then subtract the mass of the nut to get the mass of the nut alone.) Complete the data table1 by calculating the change in mass of the nut.

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