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A student runs two experiments with a constant-volume "bomb" calorimeter containing 1300. g of water (see sketch at right). armer First, a 7.000 g tablet of benzoic acid (C,H,CO,H) is put into the "bomb" and burned completely in an excess of water 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 13.00 "C to 46.92 "C over a time of 9.3 minutes. iwlaon Next, 4.950 g of ethanol (C,H,OH) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 13.00 "C to 39.48 C. chemicl on Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: A "bomb" calorimeter. C,H,OH() + 30,) - 20o,e) + 31,0 ) 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. Oexothermic endothermic ts this reaction exothermic, endothermic, or neither? neither If you said the reaction was exothermic or endothermic, calculate the amount of heat that was Du released or absorbed by the reaction in the second experiment. kJ mol Calculate the reaction enthalpy AH per mole of C,H,OH.

A student runs two experiments with a constant-volume "bomb" calorimeter containing 1300. g of water (see sketch at right). armer First, a 7.000 g tablet of benzoic acid (C,H,CO,H) is put into the "bomb" and burned completely in an excess of water 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 13.00 "C to 46.92 "C over a time of 9.3 minutes. iwlaon Next, 4.950 g of ethanol (C,H,OH) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 13.00 "C to 39.48 C. chemicl on Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: A "bomb" calorimeter. C,H,OH() + 30,) - 20o,e) + 31,0 ) 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. Oexothermic endothermic ts this reaction exothermic, endothermic, or neither? neither If you said the reaction was exothermic or endothermic, calculate the amount of heat that was Du released or absorbed by the reaction in the second experiment. kJ mol Calculate the reaction enthalpy AH per mole of C,H,OH.

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 6.110QP: A 29.1-mL sample of 1.05 M KOH is mixed with 20.9 mL of 1.07 M HBr in a coffee-cup calorimeter (see...
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A student runs two experiments with a constant-volume "bomb" calorimeter containing 1300. g of water (see sketch at right). hemineer trer First, a 7.000 g təblet of benzoic acid (C,H,CO,H) is put into the "bomb" and burned completely in an excess of water 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 13.00 °C to 46.92 °C over a time of 9.3 minutes. inwlaion Next, 4.950 g of ethanol (C,H, OH) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 13.00 °C to 39.48 °C. chemical mion Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: A "bomb" calorimeter. C,H,OH () + 30,) 2co,e) • 3H,0 ) 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. O exothermic Is this reaction exothermic, endothermic, or neither? O endothermic 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. kJ Calculate the reaction enthalpy AH per mole of C,H,OH. mol
Transcribed Image Text:A student runs two experiments with a constant-volume "bomb" calorimeter containing 1300. g of water (see sketch at right). hemineer trer First, a 7.000 g təblet of benzoic acid (C,H,CO,H) is put into the "bomb" and burned completely in an excess of water 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 13.00 °C to 46.92 °C over a time of 9.3 minutes. inwlaion Next, 4.950 g of ethanol (C,H, OH) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 13.00 °C to 39.48 °C. chemical mion Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: A "bomb" calorimeter. C,H,OH () + 30,) 2co,e) • 3H,0 ) 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. O exothermic Is this reaction exothermic, endothermic, or neither? O endothermic 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. kJ Calculate the reaction enthalpy AH per mole of C,H,OH. mol
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