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A sample of polystyrene, which has a specific heat capacity of 1.880Jg1C1, is put into a calorimeter (see sketch at right) that contains 200.0g of
A sample of polystyrene, which has a specific heat capacity of 1.880Jg1C1, is put into a calorimeter (see sketch at right) that contains 200.0g of water. The polystyrene sample starts off at 94.3C and the temperature of the water starts off at 20.0C. When the temperature of the water stops changing it's 28.3C. The pressure remains constant at 1atm. Calculate the mass of the polystyrene sample. Be sure your answer is rounded to 2 significant digits
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