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Hess Law, Chemistry
What was the calculated ?H value obtained for the reaction NH3 + HCl –› NH4Cl using the thermodynamic data in your lab procedure?
The thermodynamic data is:
•?H°f for NH3 (aq) = - 80.29 kJ/mol
•?H°f for HCl (aq) = - 167.2 kJ/mol
•?H°f for NH4 (aq) = - 132.5 kJ/mol
•?H°f for Cl- (aq) = - 167.2 kJ/mol
a. 80.29 kJ
b. -167.2 kJ
c. 52.2 kJ
d. -80.29 kJ
e. -52.2 kJ
Posted Date: 10/31/2012 1:02:39 PM | Location : United States
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