Lab: Calorimetery

Lab: Student Calorimeter (Aluminum block)

Step 1: Set up the Calorimeter as pictured. Place a known amount of room temperature water in the inner cup.

Step 2: Place a block of aluminum of known mass into a beaker of boiling water and allow it to reach the temperature of the boiling water.

Step 3: Using a pair of tongs, transfer the 100 degree C block of aluminum to the Calorimeter and allow it to come to equilibrium.

Step 4: Calculate the heat capacity of the Aluminum block

Step 5: Determine percent error. What could account for any error?

Lab: Coke Can Calorimeter (heat of combustion of paraffin)

The purpose of this experiment is to calibrate the calorimeter .

Step 1: Set up the Calorimeter as pictured. Place a known amount of room temperature water in the inner cup.

Step 2: Mass the empty aluminum can

Step 3: Fill the can with approximately 100-200 mL of water

Step 4: Mass the pre-burned candle

Step 5: Determine the efficiency of the Calorimeter.

Questions:

- What could account for any loss of heat?

- What could be done to reduce the loss of heat?

Step 4: Mass the post-burned candle

14,800 kJ/mol

42 MJ/kg

C25H52 (Candle Wax)

Lab: Coke Can Calorimeter (Calorie content of food)

Claim: Flaming Hot Doritos have more calories than Cool Ranch Doritos

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