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 ΔΗ. per mole of NaCl. rxn exothermic O endothermic 0 neither kJ kJ mol

Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter9: Energy And Chemistry
Section: Chapter Questions
Problem 9.101PAE
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A student dissolves 11.9 g of sodium chloride (NaCl)in 250. g of water in a
well-insulated open cup. He then observes the temperature of the water
fall from 23.0 °C to 21.6 °c over the course of 8.8 minutes.
Use this data, and any information you need from the ALEKS Data
resource, to answer the questions below about this reaction:
NaCl(s) Na (aq) + CI (aq)
You can make any reasonable assumptions about the physical properties
Transcribed Image Text:A student dissolves 11.9 g of sodium chloride (NaCl)in 250. g of water in a well-insulated open cup. He then observes the temperature of the water fall from 23.0 °C to 21.6 °c over the course of 8.8 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NaCl(s) Na (aq) + CI (aq) You can make any reasonable assumptions about the physical properties
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 ΔΗ. per mole of NaCl.
rxn
exothermic
endothermic
neither
kJ
kJ
mol
Transcribed Image Text: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 ΔΗ. per mole of NaCl. rxn exothermic endothermic neither kJ kJ mol
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