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16 January, 15:41

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

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  1. 16 January, 17:23
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    Lattice energy = - 820 kJ/mole

    Heat of solution = + 22.6 KJ/mole

    Lattice breakdown is and endothermic reaction during the formation of solution

    And hydration is an exothermic reaction as ions interact with solvent molecules

    By using the formula,

    Enthalpy of solution = Lattice energy + hydration energy

    Now put the values and calculate,

    +22.6 kj/mole = + 820 kj/mole + hydration energy

    Hydration energy = 22.6 Kj/mole - 820 Kj/mole

    Hydration energy = - 797.4 Kj/mole
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