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| 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 CO2 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, H2CO, is burned in the same Calorimeter, and the temperature of the bath in the calorimeter (150 g H20) changes from 24.0 to 39.2 degreesC, what is the molar heat of formation of the H2CO? |
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