Tutored Practice Pro 5.4.4 COUNTS TOWARDS GRADE Close Problem Use constant-volume calorimetry to determine energy change. A 0.934-g sample of dimethyl oxalate (C,H,O.) is burned in a bomb calorimeter and the temperature increases from 25.40 °C to 27.60 °C. The calorimeter contains 1.15x10 g of water and the bomb has a heat capacity of 943 J/°C. Based on this experiment, calculate AE for the combustion reaction per mole of dimethyl oxalate burned (kJ/mol). C,H,O4(s) + 7/2 O2(g) 4 CO2(g) + 3 H20(1) AE = kJ/mol Check & Submit Answer Show Approach

Tutored Practice Pro 5.4.4 COUNTS TOWARDS GRADE Close Problem Use constant-volume calorimetry to determine energy change. A 0.934-g sample of dimethyl oxalate (C,H,O.) is burned in a bomb calorimeter and the temperature increases from 25.40 °C to 27.60 °C. The calorimeter contains 1.15x10 g of water and the bomb has a heat capacity of 943 J/°C. Based on this experiment, calculate AE for the combustion reaction per mole of dimethyl oxalate burned (kJ/mol). C,H,O4(s) + 7/2 O2(g) 4 CO2(g) + 3 H20(1) AE = kJ/mol Check & Submit Answer Show Approach

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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True or False: In a coffee cup calorimetry experiment qreaction + qsolution = 0
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Ignition wires heat Thermometer Stirrer A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. sample Since the "bomb" itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter. %3D Water In the laboratory a student burns a 0.596-g sample of acetylsalicylic acid (C,H3O4) in a bomb calorimeter containing 1090. g of water. The temperature increases from 24.40 °C to 26.80 °C. The heat capacity of water is 4.184 J gl°C 1 The molar heat of combustion is -3869 kJ per mole of acetylsalicylic acid. C,H3O4(s) + 9 O2(g) - →9 CO2(g) + 4 H20(1) + Energy Calculate the heat capacity of the calorimeter. Burning sample Insulated Sample dish Steel outside chamber bomb heat capacity of calorimeter = J/°C Combustion (bomb) calorimeter.
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