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A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 0.5650 g sample of quinizarin (C14H8O4) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.187×10³3 g of water. During the combustion the temperature increases from 23.98 to 26.55 °C. The heat capacity of water is 4.184 J glºC1. The heat capacity of the calorimeter was determined in a previous experiment to be 770.8 J/°C. Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of quinizarin based on these data. C14H804(s) + 1402(g) → 4 H20(1) + 14 CO2(g) + Energy

A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 0.5650 g sample of quinizarin (C14H8O4) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.187×10³3 g of water. During the combustion the temperature increases from 23.98 to 26.55 °C. The heat capacity of water is 4.184 J glºC1. The heat capacity of the calorimeter was determined in a previous experiment to be 770.8 J/°C. Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of quinizarin based on these data. C14H804(s) + 1402(g) → 4 H20(1) + 14 CO2(g) + Energy

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter4: Energy And Chemical Reactions
Section: Chapter Questions
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History Bookmarks Window Help Sun Mar 27 10:53 PM cvg.cengagenow.com 中 [References] Use the References to access important values if needed for this question. Ignition wires heat Thermometer Stirrer A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of sample fuels and the energy content of foods. In an experiment, a 0.5650 g sample of quinizarin (C14H804) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.187×103 g of water. During the combustion the temperature increases from 23.98 to Water 26.55 °C. The heat capacity of water is 4.184 J gloC1. The heat capacity of the calorimeter was determined in a previous experiment to be 770.8 J/°C. Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of quinizarin based on these data. C14H804(s) + 1402(g) → 4 H20(1) + 14 CO2(g) + Energy Sample dish Burning sample Steel bomb Insulated outside chamber Molar Heat of Combustion = kJ/mol Combustion (bomb) calorimeter. Submit Answer Try Another Version 1 item attempt remaining Previous Next Cengage Learning | Cengage Technical Support MAR OL étv 27
Transcribed Image Text:History Bookmarks Window Help Sun Mar 27 10:53 PM cvg.cengagenow.com 中 [References] Use the References to access important values if needed for this question. Ignition wires heat Thermometer Stirrer A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of sample fuels and the energy content of foods. In an experiment, a 0.5650 g sample of quinizarin (C14H804) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.187×103 g of water. During the combustion the temperature increases from 23.98 to Water 26.55 °C. The heat capacity of water is 4.184 J gloC1. The heat capacity of the calorimeter was determined in a previous experiment to be 770.8 J/°C. Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of quinizarin based on these data. C14H804(s) + 1402(g) → 4 H20(1) + 14 CO2(g) + Energy Sample dish Burning sample Steel bomb Insulated outside chamber Molar Heat of Combustion = kJ/mol Combustion (bomb) calorimeter. Submit Answer Try Another Version 1 item attempt remaining Previous Next Cengage Learning | Cengage Technical Support MAR OL étv 27
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