Practice Problems
1. 2,000.0 g. of water in a calorimeter has its temperature raised by 3.0 degrees C by
    an exothermic chemical reaction. How much heat was transfered?


2. A 1000.0 g mass of water whose temperature was 50 degrees C lost 33,600 J of
    heat over a 5-min period. What was the temperature of the water at the end of the
    5-min period?


3. A constant pressure calorimeter where the water bath has a mass of 150 grams.
    1.00 g of diamond is burned to produce CO
2 and Water.  If the water bath in the
    Calorimeter is initially at 22 degrees C, what is the final temperature of the
    Calorimeter?

4. If 0.500 gram of another substance, H
2CO, is burned in the same Calorimeter,
   and the temperature of the bath in the calorimeter (150 g H
20) changes from 24.0
   to 39.2 degreesC, what is the molar heat of formation of the H
2CO?
Answers
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