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A sample of polystyrene, which has a specific heat capacity of 1.880 J'g .°C', is put into a calorimeter (see sketch at right) that contains 200.0 g of water. The polystyrene sample starts off at 95.2 °C and the temperature of the water starts off at 24.0 °C. When the temperature of the water stops changing it's 32.4 °C. The pressure remains constant at 1 atm. Calculate the mass of the polystyrene sample. Be sure your answer is rounded to 2 significant digits.

A sample of polystyrene, which has a specific heat capacity of 1.880 J'g .°C', is put into a calorimeter (see sketch at right) that contains 200.0 g of water. The polystyrene sample starts off at 95.2 °C and the temperature of the water starts off at 24.0 °C. When the temperature of the water stops changing it's 32.4 °C. The pressure remains constant at 1 atm. Calculate the mass of the polystyrene sample. Be sure your answer is rounded to 2 significant digits.

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.63QE: A 0.470-g sample of magnesium reacts with 200 g dilute HCl in a coffee-cup calorimeter to form...
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- 1 -1 A sample of polystyrene, which has a specific heat capacity of 1.880 J-g .°C ', is put into a calorimeter (see sketch at right) that contains 200.0 g of water. The polystyrene sample starts off at 95.2 °C and the temperature of the water starts off at 24.0 °C. When the temperature of the water stops changing it's 32.4 °C. The pressure remains constant at 1 atm. Calculate the mass of the polystyrene sample. Be sure your answer is rounded to 2 significant digits. |x10
Transcribed Image Text:- 1 -1 A sample of polystyrene, which has a specific heat capacity of 1.880 J-g .°C ', is put into a calorimeter (see sketch at right) that contains 200.0 g of water. The polystyrene sample starts off at 95.2 °C and the temperature of the water starts off at 24.0 °C. When the temperature of the water stops changing it's 32.4 °C. The pressure remains constant at 1 atm. Calculate the mass of the polystyrene sample. Be sure your answer is rounded to 2 significant digits. |x10
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