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valina [46]3 years ago

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The answer Should Be B) Fam

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For KNO3 the heat of solution is 23.8 kJ/mol and the lattice energy is -685.0 kJ/mol. Calculate the heat of hydration.

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<u>Answer:</u> The heat of hydration for potassium nitrate is 708.8 kJ/mol

<u>Explanation:</u>

We are given:

Heat of solution for potassium nitrate = 23.8 kJ/mol

Lattice energy for potassium nitrate = -685.0 kJ/mol

Heat of hydration for potassium nitrate = ?

To calculate the heat of hydration, we use the equation:

Heat of the solution = Heat of hydration + Lattice energy

Putting values in above equation, we get:

$23.8=\text{Heat of hydration}+(-685.0)\\\\\text{Heat of hydration}=23.8-(-685.0)\\\\\text{Heat of hydration}=708.8kJ/mol$

Hence, the heat of hydration for potassium nitrate is 708.8 kJ/mol

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