Chapter 4.4, Problem 9E

Interpretation Introduction

Interpretation:Mole fraction of each compound in mixture that has $15.0\text{ g}$ of cyclohexane and $5.0\text{ g}$ of toluene should be determined.

Concept introduction:Concentration can be defined as ratio of amount of solute to that of solvent. Different concentration terms are used for determination of concentration in solution. Some of these are molarity, molality, mole fraction, mass percent and volume percent.

Mole fraction is scientific term that is used to describe concentration of solution. It is defined as moles of particular component divided by total number of moles present in solution and is denoted by $N_{\text{X}}$ . Mathematical expression of mole fraction is as follows:

  $N_{\text{X}}=\frac{\text{Moles of component}}{\text{Total number of moles}}$ ..................(1)