Question

In the box provided, write a brief explanation of what assumption is made in order to determine the molecular weight of your unknown solute when it is dissolved in cyclohexane. for which factor in the expression for the freezing point depression do you not collect data?

Answer 1

For that situation, you have to assume that when your unknown dissolves, it only forms one mole of particles in solution per mole of substance. You don't collect data for the i term in the equation... the Van't Hoff factor.