When a 8.32-g sample of solid ammonium chloride dissolves in 57.2 g of water in a coffee-cup calorimeter (see above figure) the temperature falls from 23.00 oC to 14.65 oC. Calculate H in kJ/mol NH4Cl for the solution process. NH4Cl(s) NH4+(aq) + Cl-(aq)

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Chapter1: Chemical Foundations
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When a 8.32-g sample of solid
ammonium chloride dissolves in 57.2 g
of water in a coffee-cup calorimeter
(see above figure) the temperature falls
from 23.00 oC to 14.65 oC. Calculate H
in kJ/mol NH4Cl for the solution
process. NH4Cl(s) NH4+(aq) + Cl-(aq)
The specific heat of water is 4.18 J/g-K.
Hsolution=kJ/mol NH4Cl.
Transcribed Image Text:When a 8.32-g sample of solid ammonium chloride dissolves in 57.2 g of water in a coffee-cup calorimeter (see above figure) the temperature falls from 23.00 oC to 14.65 oC. Calculate H in kJ/mol NH4Cl for the solution process. NH4Cl(s) NH4+(aq) + Cl-(aq) The specific heat of water is 4.18 J/g-K. Hsolution=kJ/mol NH4Cl.
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