FeCl₃ has a van't Hoff factor of i = 3.4. What is the concentration of particles in a 0.3101 M solution of FeCl₃?

Answer 1

The van't Hoff is defined as the ratio of the actual concentration of particles in a solution to the concentration of the compound as determined by its mass.

In equation form, i = actual concentration of particles / concentration of the compound.

Actual concentration of particles = i x concentration of compound = 3.4 x 0.3101 = 1.05434 M.

Since the van't Hoff factor is given to only 2 significant figures, the answer should be rounded to 1.1.