Problem: Potassium perchlorate (KClO4) has a lattice energy of -599 kJ/mol and a heat of hydration of -548 kJ/mol.Find the heat of solution for potassium perchlorate when 10.6 g of potassium perchlorate is dissolved with enough water to make 110.1 mL of solution.

FREE Expert Solution
  • We have to calculate the heat of solution when 10.6 g potassium perchlorate is dissolved in water.


Heat of solution is the energy absorbed or released when a solid is dissolved in a solvent to form a solution.

The heat of solution is calculated by this formula:

H°solution = H°hydration - H°lattice

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Problem Details

Potassium perchlorate (KClO4) has a lattice energy of -599 kJ/mol and a heat of hydration of -548 kJ/mol.

Find the heat of solution for potassium perchlorate when 10.6 g of potassium perchlorate is dissolved with enough water to make 110.1 mL of solution.