Determine the heat of dissolution, in kJ/mol, of 0.250 mol C2 having a specific heat of 0.84 J/g °C. A 7 g sample of C2 was placed in calorimeter with water weighing 131 g. The initial temperature of the system was 19.4 °C and was allowed to reach thermal equilibrium at a temperature of 22.8 °C. Assume that the calorimeter is a perfect insulator. Report answer with 3 significant figures.

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.