Nicotinamide is a water-soluble nonelectrolyte vitamin important in metabolism.  Addition of 3.88 g of nicotinamide to 30.0 mL nitrobenzene lowers the freezing point  from 5.70°C to -1.40°C. (Given densitynitrobenzene = 1.204 g/mL, Kb, nitrobenzene = 5.24  °C/m, Kf, nitrobenzene = 8.10 °C/m, boiling point of nitrobenzene = 210.8°C) A. Calculate the molality of the solution.  B. Determine the molecular weight of nicotinamide. C. Determine the boiling point of the solution.

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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.