Answer to Question #85875 in Inorganic Chemistry for katherin

Question #85875
Calculate the enthalpy of solution (ΔH for the dissolution) per mole of NH4NO3
1
Expert's answer
2019-03-07T07:04:14-0500

The molar mass of NH4NO3 is 80.0423 g/mol. For the example, 1000 J is required to dissolve 3.21 g of NH4NO3. One mole under the same conditions would require


80.0432g/mol/3.21g * 1000J = 25 kJ/mol .


(The heat of solution is positive because the process is endothermic.)


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