Homework Help is Here – Start Your Trial Now!
Science
Chemistry
A student runs two experiments with a constant-volume "bomb" calorimeter containing 1200. g of water (see sketch at right). First, a 6.000 g tablet of benzoic acid (CH,CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 12.00 °C to 40.14 °C over a time of 5.6 minutes. Next, 6.000 g of acetaldehyde (C₂HO) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 12.00 °C to 36.01 °C. Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: 2C,H,O(g) +50,(e) 400,(e) +4H₂O(g) Ո thermometer stirrer chemical reaction "bomb" A "bomb" calorimeter. water insulation Be sure any of your answers that are calculated from measured data are rounded to the correct number of significant digits. Note for advanced students: it's possible the student did not do these experiments sufficiently carefully, and the values you calculate may not exactly match published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in the second experiment. Calculate the reaction enthalpy AH per mole of C₂HO. rxn O exothermic O endothermic х § O neither kJ kJ mol

A student runs two experiments with a constant-volume "bomb" calorimeter containing 1200. g of water (see sketch at right). First, a 6.000 g tablet of benzoic acid (CH,CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 12.00 °C to 40.14 °C over a time of 5.6 minutes. Next, 6.000 g of acetaldehyde (C₂HO) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 12.00 °C to 36.01 °C. Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: 2C,H,O(g) +50,(e) 400,(e) +4H₂O(g) Ո thermometer stirrer chemical reaction "bomb" A "bomb" calorimeter. water insulation Be sure any of your answers that are calculated from measured data are rounded to the correct number of significant digits. Note for advanced students: it's possible the student did not do these experiments sufficiently carefully, and the values you calculate may not exactly match published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in the second experiment. Calculate the reaction enthalpy AH per mole of C₂HO. rxn O exothermic O endothermic х § O neither kJ kJ mol

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.109QP: A 21.3-mL sample of 0.977 M NaOH is mixed with 29.5 mL of 0.918 M HCl in a coffee-cup calorimeter...
See similar textbooks
icon
Related questions
Question
None
A student runs two experiments with a constant-volume "bomb" calorimeter containing 1200. g of water (see sketch at right). First, a 6.000 g tablet of benzoic acid (CH,CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 12.00 °C to 40.14 °C over a time of 5.6 minutes. Next, 6.000 g of acetaldehyde (C₂HO) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 12.00 °C to 36.01 °C. Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: 2C,H,O(g) +50,(e) 400,(e) +4H₂O(g) Ո thermometer stirrer chemical reaction "bomb" A "bomb" calorimeter. water insulation Be sure any of your answers that are calculated from measured data are rounded to the correct number of significant digits. Note for advanced students: it's possible the student did not do these experiments sufficiently carefully, and the values you calculate may not exactly match published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in the second experiment. Calculate the reaction enthalpy AH per mole of C₂HO. rxn O exothermic O endothermic х § O neither kJ kJ mol
Transcribed Image Text:A student runs two experiments with a constant-volume "bomb" calorimeter containing 1200. g of water (see sketch at right). First, a 6.000 g tablet of benzoic acid (CH,CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 12.00 °C to 40.14 °C over a time of 5.6 minutes. Next, 6.000 g of acetaldehyde (C₂HO) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 12.00 °C to 36.01 °C. Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: 2C,H,O(g) +50,(e) 400,(e) +4H₂O(g) Ո thermometer stirrer chemical reaction "bomb" A "bomb" calorimeter. water insulation Be sure any of your answers that are calculated from measured data are rounded to the correct number of significant digits. Note for advanced students: it's possible the student did not do these experiments sufficiently carefully, and the values you calculate may not exactly match published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in the second experiment. Calculate the reaction enthalpy AH per mole of C₂HO. rxn O exothermic O endothermic х § O neither kJ kJ mol
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
General Chemistry - Standalone book (MindTap Cour…
General Chemistry - Standalone book (MindTap Cour…
Chemistry
ISBN:
9781305580343
Author:
Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Chemistry for Engineering Students
Chemistry for Engineering Students
Chemistry
ISBN:
9781337398909
Author:
Lawrence S. Brown, Tom Holme
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781133611097
Author:
Steven S. Zumdahl
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS