Chemistry Practice Problems Lattice Energy Application Practice Problems Solution: Silver nitrate has a lattice energy of 820.kJ/mol ...

Solution: Silver nitrate has a lattice energy of 820.kJ/mol and a heat of solution of +22.6kJ/mol. Calculate the heat of hydration for silver nitrate.

Problem

Silver nitrate has a lattice energy of 820.kJ/mol and a heat of solution of +22.6kJ/mol. Calculate the heat of hydration for silver nitrate.

Solution

We are being asked to calculate for the heat of hydration of silver nitrate using its lattice energy and heat of solution.


Lattice energy represents the energy released when 1 mole of an ionic crystal is formed from its gaseous ions.

The heat of hydration of an ion is the amount of heat released when one mole of that ion dissolves in water.

The heat of the solution, is enthalpy change related to the dissolution of a substance in a solvent.



The equation below relates the lattice energy, heat of solution, and heat of hydration:

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