Given: mass of ethanol used in the experiment = 15.7g mass of unknown solution =4.09g Volume of ethanol used in experiment =20mL boiling point of pure ethanol =82.3 Celsius  Boiling point of unknown solution = 86.2 Celsius  Molality of the solution from the measured boiling point elevation and the Kb for ethanol =3.197 What is the number of moles of unknown used in the experiment?

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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.