Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074



Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Use the data in Table 13.1 to calculate the enthalpy of solution for NaOH.

TABLE 13.1

Data for calculating enthalpy of Solution


Interpretation Introduction

Interpretation: The enthalpy of solution of NaOH to be identified.

Concept introduction:

Enthalpy of solution: In the process, the change in enthalpy while dissolving the solute in the solvent.

ΔsolnHo = [fHo(Product)]-[fHo(Reactant)]



Enthalpy of formation of NaOH in the solid state = - 425.9 kJ/molEnthalpy of formation of NaOH in the solution    = - 469.2 kJ/mol

The enthalpy of solution:

ΔsolnHo = [fHo(Product)]-[fHo(Reactant)]


Thus enthalpy can be calculated as;

ΔsolnHo = [f</

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