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 this case. Calculate the reaction enthalpy AHvn per mole of NH¼CI. rxn

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Chapter18: Thermodynamics And Equilibrium
Section: Chapter Questions
Problem 18.109QP: Silver carbonate, Ag2CO3, is a light yellow compound that decomposes when heated to give silver...
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A student dissolves 13.0 g of ammonium chloride (NH, Cl) in 300. g of water in a well-insulated open cup. He then
observes the temperature of the water fall from 20.0 °C to 17.3 °C over the course of 4.6 minutes.
Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this
reaction:
NH, CI (s) -
NH(aq) + Cl (aq)
You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate
using measured data are rounded to 2 significant digits.
Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate
may not be the same as the known and published values for this reaction.
exothermic
x10
Is this reaction exothermic, endothermic, or neither?
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 this case.
| kJ
kJ
Calculate the reaction enthalpy AHxn per mole of NH,Cl.
mol
Transcribed Image Text:A student dissolves 13.0 g of ammonium chloride (NH, Cl) in 300. g of water in a well-insulated open cup. He then observes the temperature of the water fall from 20.0 °C to 17.3 °C over the course of 4.6 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NH, CI (s) - NH(aq) + Cl (aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to 2 significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. exothermic x10 Is this reaction exothermic, endothermic, or neither? 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 this case. | kJ kJ Calculate the reaction enthalpy AHxn per mole of NH,Cl. mol
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