A student determines the heat of dissolution of solid calcium bromide using a coffee- cup calorimeter of negligible heat capacity. When 1.62 g of CaBr₂(s) is dissolved in 106.00 g of water, the temperature of the solution increases from 25.00 to 26.98 °C. Based on the student's observation, calculate the enthalpy of dissolution of CaBr₂(s) in kJ/mol. Assume the specific heat of the solution is 4.184 J/gºC. AH dissolution kJ/mol

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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.