Problem: Sodium hydroxide (NaOH) has a lattice energy of -887 kJ/mol and a heat of hydration of -932 kJ/mol.How much solution could be heated to boiling by the heat evolved by the dissolution of 24.5  g of NaOH? (For the solution, assume a heat capacity of 4.0 J/goC, an initial temperature of 25.0 oC, a boiling point of 100.0 oC, and a density of 1.05 g/mL.)

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FREE Expert Solution
FREE Expert Solution

The heat of dissolution of NaOH is:

Hdissolution=887 kJmol-932 kJmolHdissolution=-45 kJmol

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Problem Details

Sodium hydroxide (NaOH) has a lattice energy of -887 kJ/mol and a heat of hydration of -932 kJ/mol.

How much solution could be heated to boiling by the heat evolved by the dissolution of 24.5  g of NaOH? (For the solution, assume a heat capacity of 4.0 J/goC, an initial temperature of 25.0 oC, a boiling point of 100.0 oC, and a density of 1.05 g/mL.)

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Based on our data, we think this problem is relevant for Professor Zewdu's class at COLUMBUS STATE.